| 1961 SHOWERS Bowling Ball Handle Patent Print |
| 1961 VINCENT Bowling Ball Grip Insert Patent |
| 1961 FERRIS Outdoor Bowling Alley Patent Print |
| 1961 INSETTA Bowling Ball Construction Patent |
| 1961 ALER RICHARD Bowling Pin Patent Print Art |
| 1961 LAPITSKY Bowling Indicator BOWL-TRONICS Patent 687 |
| 1961 LOUIS Practicing Bowling Art Print Patent |
| 1961 MILTON SANDERS Bowling Pin Patent Print Art |
| 1961 DETTMAN FRED Bowling Pin Patent Print Art |
| 1961 HILDA Bowling Grip Developer Patent Print |
| 1961 DE Bowling Alley Construction Patent Print |
| 1961 AMERICAN MACH & FOUNDRY Bowling Pin Patent |
| 1961 HAUGH Bowling Ball Lettering Machine Patent |
| 1961 MARTING RICHARD Bowling Aid Patent Print |
| 1961 MITCHELL Bowling Ball Door Guard Patent |
| 1961 TRUCHE Bowling Alley Backstop Patent Print |
| 1961 COTA Hand Dryer For Bowling Lanes Patent |
| 1961 VITEK Home Bowling Trainer Patent Print Art |
| 1961 GREEN ROBERT Bowling Alley Patent Print Art |
| 1961 SALVATORE ALU Bowling Games Patent Print |
| 1961 CARROW BURNETT Bowling Pin Rake Patent |
| 1961 MELVIN Gutter For Bowling Alley Patent |
| 1961 BUNK Adjustable Bowling Ball Grip Patent |
| 1961 GEORGE Bowling Training Alley Patent Print |
| 1961 VINCENT YETTITO Bowling Ball Patent Print |
| 1961 PHILLIPS Bowling Instruction Device Patent |
| 1961 PETERSON CLAYTON Bowling Guide Patent Print |
| 1961 HILDA COHAN Bowling Grip Developer Patent |
| 1961 HUCK Bowling Pin Changing Mechanism Patent |