| 1938 PRYALE Stair Tread Design BALDWIN Patent 23139 |
| 1918 GALLY Music Instrument Valve BALDWIN Patent 17215 |
| 1961 BALDWIN Wedge Cruciform Fin Patent Print |
| 1942 BALDWIN EDWARD Propeller Patent Print Art |
| 1835 BALDWIN Making Crayons Pencil Points Patent 52258 |
| 1854 BALDWIN Truss Bridge Tubular Patent 6420 |
| 1865 BALDWIN Hot Air Engine Patent 12824 |
| 1969 BALDWIN CO D H Compact Piano Action Patent |
| 1940 BALDWIN CO Piano Patent Print Art |
| 1948 BALDWIN Saddle Horn Embracing RANCH Patent 36463 |
| 1950 BALDWIN LOCOMOTIVE WORKS Locomotive Patent |
| 1924 BALDWIN LOCOMOTIVE WORKS Locomotive Patent |
| 1935 BALDWIN EDWARD Timepiece Patent Print Art |
| 1966 BALDWIN CO D H Gating Circuit Patent Print |
| 1854 BALDWIN Magazine for Firearm Patent 11701 |
| 1928 BALDWIN Embroidery Hoop Holder Patent Print |
| 1885 BALDWIN Toy Gravity RR Parlor Sleigh Patent 7185 |
| 1942 BALDWIN CO Piano String Support Patent |
| 1925 BALDWIN LOCOMOTIVE WORKS Truck Patent Print |
| 1943 BALDWIN Sanding Control Valve Patent Print |
| 1935 BALDWIN AMASA Dumping Vehicle Patent Print |
| 1928 BALDWIN AUGUSTUS Machine Gun Patent Print |
| 1864 BALDWIN Barrel Stave Design Patent 12816 |
| 1925 WALKER BALDWIN Water Drive Patent Print Art |
| 1943 BALDWIN HAROLD Traction Device Patent Print |
| 1932 BALDWIN EDWARD Marine Craft Patent Print |
| 1956 BALDWIN PIANO COMPANY Oscillator Patent |
| 1870 BALDWIN Artificial Flower Design Patent 11350 |
| 1939 BALDWIN CO Piano Fall Board Patent Print |
| 1965 BALDWIN Venturi Type Safety Device Patent |
| 1922 BALDWIN WILLIAM Drum Patent Print Art |
| 1900 BALDWIN Dial Face Ornamental Design Patent 23277 |
| 1881 BEACH Electric Galvanic Belt BALDWIN Patent 32508 |
| 1858 BALDWIN Watch Attachment Design Patent 12084 |
| 1917 BALDWIN Golf Shoe Adapter Patent 8797 |
| 1968 BALDWIN HOWARD Trailer Steps Patent Print |
| 1958 BALDWIN Design Automobile CHRYSLER Patent 48484 |
| 1859 BALDWIN Adjustable Wormer for Ramrods Patent 12783 |
| 1898 BALDWIN Original Design Cigar Shield Patent 32563 |
| 1869 BALDWIN Liquid Meter Patent 5975 |
| 1940 MORSE ARTHUR Piano BALDWIN CO Patent Print |
| 1923 BALDWIN FREDERICK Target Patent Print Art |
| 1961 BALDWIN PIANO COMPANY Electropiano Patent |
| 1931 BALDWIN CO Music Rest For Pianos Patent |
| 1886 BALDWIN Electric Therapeutic WAGNER Patent 18658 |
| 1940 BALDWIN CO Horizontal Piano Patent Print |
| 1922 BALDWIN FREDERICK Torpedo Patent Print Art |
| 1900 BALDWIN Ornamental Design Dial Face Patent 24380 |
| 1835 BURGESS Thrashing Machine BALDWIN Patent 52279 |
| 1926 V BALDWIN VAN Car Door Patent Print Art |
| 1951 BALDWIN CO Vibrato System Patent Print Art |
| 1965 BALDWIN Control Mechanisms Patent Print Art |
| 1949 BALDWIN Log Handling Equipment Patent Print |
| 1943 BALDWIN LOCOMOTIVE WORKS Elevator Patent |
| 1964 BALDWIN CO D H Rhythmic Interpolator Patent |
| 1931 BALDWIN CO Grand Piano Case Patent Print |
| 1940 KOCK Electrical Contact BALDWIN Patent 11009 |
| 1927 BALDWIN ADAMS Life Belt Patent Print Art |
| 1928 BALDWIN EDWARD Marine Craft Patent Print |
| 1877 BALDWIN Hat Sweat Band Attaching Patent 7787 |
| 1876 BALDWIN Hydraulic Elevator Design Patent 8954 |
| 1967 BALDWIN CO D H Electronic Organ Patent |
| 1954 BALDWIN CO Frequency Dividing System Patent |
| 1939 BALDWIN GRIFFIN Alarm Device Patent Print |
| 1951 BALDWIN CO Upright Piano Action Patent |
| 1951 BALDWIN CO Fall Board Mechanism Patent |
| 1934 MARTIN BALDWIN Golf Club Carrier Patent |
| 1829 MASON Hydraulic Press BALDWIN Patent 51418 |
| 1886 BALDWIN Electric Igniter Gas Engines Patent 8581 |
| 1939 BALDWIN CO Grand Piano Action Patent Print |
| 1917 BALDWIN Golf Shoe Attachment Patent 7290 |
| 1900 BALDWIN Design Battery Frame COLUMBIA Patent 50158 |
| 1947 WALKER BALDWIN Design Hobbyhorse NEW Patent 36460 |
| 1947 BALDWIN Line Throwing Gun Kit Patent Print |
| 1946 BALDWIN Powered Loading Truck Patent Print |
| 1976 BALDWIN Design Quadricycle TOUCON Patent 48095 |
| 1976 KIMBLE Design Synthesizer BALDWIN Patent 25815 |
| 1854 BALDWIN Loading Magazine Fire Arm Patent 22208 |
| 1941 BALDWIN CO Mechanism For Pianos Patent |
| 1925 BALDWIN Truck Or Wheeled Receptacle Patent |
| 1942 BALDWIN Propeller Patent Print Art |
| 1943 BALDWIN LOCOMOTIVE WORKS Locomotive Patent |
| 1943 BALDWIN WAYNE Track Sander Patent Print Art |
| 1962 BALDWIN PIANO COMPANY Electro Piano Patent |
| 1885 BALDWIN Rectal Speculum Patent 18679 |
| 1965 BALDWIN Boat Propulsion System Patent Print |
| 1967 BALDWIN Boat Trailer Hitch Patent Print Art |
| 1962 BALDWIN Golfers Utility Tool Patent 7306 |
| 1931 BALDWIN CO Grand Piano Action Patent Print |
| 1920 BALDWIN ALFRED Vehicle Wheel Patent Print |
| 1924 BALDWIN FREDERICK Hydrodrome Patent Print |
| 1900 BALDWIN Toilet Seat Cover Patent 10381 |
| 1968 BALDWIN CO D H Preference Circuit Patent |
| 1930 BALDWIN WILLIAM Golf Tee Patent Print Art |
| 1931 BALDWIN FRANCIS Skate Wheel Patent Print |
| 1939 BALDWIN CO Piano Action Connection Patent |
| 1938 BALDWIN CO Piano Key Connection Patent |
| 1926 CONRAD DAVID Car Door V BALDWIN VAN Patent |