| Patent No. | Patent Title: |
| 4006900 | Magnetic baseball, bat and glove |
| 4005860 | Basketball backboard and support |
| 4005700 | Device for measuring blood gases |
| 4003575 | Amusement and exercise device |
| 4002224 | Turbine lubrication and emergency gas system |
| 3999538 | Method of blood viscosity determination |
| 3998461 | Archery projector and target |
| 3995717 | Sequential lubrication distributor and lubricant injector therefo... |
| 3994367 | Hydrostatically lubricated bearing |
| 3994497 | Playing field and batting apparatus |
| 3993164 | Mounting and lubricating system for rotating machinery |
| 3993310 | Shuttlecocks |
| 3993165 | Lubricant dosing device |
| 3991855 | Automatic greaser for universal joint |
| 3992008 | Playing racquet having an adjustable net |
| 3991854 | Automobile electric vacuum pump filtering system |
| 3992007 | Single spring wire playing ball mechanism |
| 3990539 | Lubrication means for swing gear drive |
| 3990702 | Racquet game |
| 3990703 | Target having resiliently divided compartments and projectiles |
| 3990704 | Target image projector with simulated gun assembly |
| 3989244 | Pool guide aiming and teaching device |
| 3989250 | Game apparatus |
| 3987869 | Back pack lubrication system |
| 3985359 | Portable sports court boundary |
| 3985205 | Lubricating system |
| 3982763 | Chance controlled cross-out apparatus |
| 3982761 | Cantilevered pellet backstop |
| 3980305 | Simulated bowling apparatus |
| 3980303 | Game structure |
| 3980298 | Concealed playing piece apparatus |
| 3979118 | Marksmanship target including pivoting target arms |
| 3979117 | Football dart board game |
| 3977678 | Ring toss apparatus using biological symbols |
| 3976165 | Lubricating and oil seal system for a high speed compressor |
| 3976297 | Returning tethered disc |
| 3973774 | Projecting catapults and view obstructing cylinder |
| 3972531 | Indicating target for projectiles |
| 3971562 | Rollable sheet having target aperture and missile used therewith |
| 3970308 | Ring, ball and cone retrieval apparatus |
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