| 1957 WELLS Bowling Pin Setting Mechanism Patent |
| 1962 BRUNSWICK CORP Bowling Ball Return Mechanism |
| 1960 LEVENDOSKI Bowling Ball Handling Return Mechanism |
| 1957 RAYMOND T MOLONEY Bowling Pin Mechanism Art |
| 1962 HOLLOWAY Bowling Pin Elevating Mechanism |
| 1963 BRUNSWICK CORP Bowling Ball Lift Mechanism |
| 1957 HOLLOWAY Bowling Pin Spotting Respotting Mechanism |
| 1961 ALBRECHT Bowling Ball Return Mechanism Art |
| 1962 JONES Bowling Ball Stop Mechanism Patent |
| 1961 CONGELLI Bowling Pin Ball Elevating Mechanism |
| 1963 HOLLOWAY Bowling Ball Pin Separating Mechanism |
| 1957 COHN T Bowling Game Pin Retraction Mechanism |
| 1952 SCHMIDT Bowling Pin Respotting Mechanism |
| 1956 JOHN Bowling Pin Spotting Mechanism Patent |
| 1950 STRONG Bowling Pin Elevating Resetting Mechanism |
| 1963 JOHN Bowling Pin Elevating Mechanism Patent |
| 1962 HOLLOWAY Bowling Ball Return Mechanism Art |
| 1955 FLUKE Bowling Pin Respotting Mechanism Art |
| 1950 FRYE Bowling Pin Raising Lowering Mechanism |
| 1963 JOHN Bowling Ball Return Handling Mechanism |
| 1942 RUNDELL Bowling Pin Support Centering Mechanism |
| 1961 KURT Bowling Pin Distributor Mechanism Art |
| 1953 MCGINLEY Bowling Ball Pin Handling Mechanism |
| 1954 WELLS Bowling Pin Setting Mechanism Patent |
| 1963 GRUSS Bowling Ball Handling Mechanism Art |
| 1961 STUNKEL Simulating Bowling Pin Actuating Mechanism |
| 1957 DAVID Bowling Game Pin Retraction Mechanism |
| 1957 SANFORD Bowling Pin Handling Mechanism Art |
| 1962 AMERICAN MACH FOUNDRY Bowling Ball Stop Mechanism |
| 1961 CONGELLI Bowling Pin Conveying Mechanism |
| 1960 MOREHEAD Bowling Ball Return Mechanism Art |
| 1960 ALBRECHT Bowling Pin Handling Mechanism Art |
| 1960 SCHERZINGER Bowling Alley Pin Sweeping Mechanism |
| 1963 CONGELLI Bowling Ball Elevating Mechanism |
| 1952 NEJEDLY Bowling Pin Spotting Mechanism Art |
| 1943 FLANAGAN Automatic Bowling Alley Mechanism |
| 1959 JOHN Bowling Pin Handling Mechanism Patent |
| 1953 SIMPSON Bowling Pin Conveying Orienting Mechanism |
| 1962 ALBRECHT Bowling Ball Return Mechanism Art |
| 1959 JOHN Bowling Alley Sweep Mechanism Patent |
| 1960 HUCK Bowling Pin Handling Mechanism Patent |
| 1959 BLACK Bowling Pin Transfer Mechanism Patent |
| 1957 MONTOOTH Bowling Ball Delivery Mechanism |
| 1956 JOHN Bowling Ball Handling Return Mechanism |
| 1952 JOHNS Bowling Alley Sweeper Mechanism Art |
| 1954 PHILLIPS Bowling Pin Elevating Mechanism |
| 1959 BLACK ROSS (+3) Bowling Pin Transfer Mechanism |
| 1963 THOMAS Bowling Pin Respotting Mechanism Art |
| 1952 HAGQUIST Bowling Alley Backstop Mechanism |
| 1956 DOWD Bowling Pin Setting Mechanism Patent |
| 1957 BREITENSTEIN Bowling Pin Mechanism Patent |
| 1956 BOWL MOR INC Bowling Pin Setting Mechanism |
| 1953 DURANT Bowling Pin Elevating Resetting Mechanism |
| 1952 ERWIN Bowling Ball Return Mechanism Patent |
| 1942 SCHMIDT Bowling Pin Lifting Mechanism Art |
| 1963 GEORGE Bowling Ball Handling Return Mechanism |
| 1963 ANDERSON Bowling Ball Lift Mechanism Patent |
| 1960 HOLLOWAY Bowling Pin Respotting Mechanism |
| 1963 THOMAS Bowling Pin Spotting Mechanism Art |
| 1957 MONTOOTH Bowling Pin Handling Mechanism Art |
| 1961 HUCK Bowling Pin Changing Mechanism Patent |