| 1950 WALKER Firing Mechanism For Firearms Patent |
| 1950 ROURA Trip Mechanism For Dump Bodies Patent |
| 1950 GARAND Safety Mechanism For Firearms Patent |
| 1950 KUHN Hand Or Power Driving Mechanism Patent |
| 1950 PAUL Board Leveling Mechanism Patent Print |
| 1950 BEARDSLEY Breech Operating Mechanism Patent |
| 1950 JOPPERI Engine Control Mechanism Patent |
| 1950 SANFORD Cartridge Feeding Mechanism Patent |
| 1950 BRAZEE Alarm Set And Stop Mechanism Patent |
| 1950 PROTZELLER Take Off Mechanism Patent Print |
| 1950 HOPKINS Door Mechanism For Boxcars Patent |
| 1950 KAEFER MARTIN Timing Mechanism Patent Print |
| 1950 KINNE Coupler Operating Mechanism Patent |
| 1950 ABRAHAM Button Feeding Mechanism Patent |
| 1950 WOLF Tail Gate Actuating Mechanism Patent |
| 1950 GOLAY Truck Dumping Mechanism Patent Print |
| 1950 WEEKS WALTER Sear Mechanism Patent Print |
| 1950 HENSLEY Aircraft Control Mechanism Patent |
| 1950 ANDERSON LOUIS Bolt Mechanism Patent Print |
| 1950 MESH Rail Flaw Detector Mechanism Patent |
| 1950 GEORGE Stabilizing Mechanism Patent Print |
| 1950 GEN ELECTRIC Sear Mechanism Patent Print |
| 1950 FRED Hoist Mechanism For Dump Trucks Patent |
| 1950 BOEING CO Control Linkage Mechanism Patent |
| 1950 HALL Parachute Release Mechanism Patent |
| 1950 LINDER Parachute Release Mechanism Patent |
| 1950 GUNNAR Switch Resetting Mechanism Patent |
| 1950 FAULKNER Work Clamping Mechanism Patent |
| 1950 HOHMANN Sewing Machine Mechanism Patent |
| 1950 FOLKESTAD Gun Controlling Mechanism Patent |
| 1950 BAKER Auxiliary Propulsion Mechanism Patent |
| 1950 THOMAS Power Transmission Mechanism Patent |
| 1950 PIERCE ALBERT Trigger Mechanism Patent |
| 1950 SAUL Firing Mechanism For Mortars Patent |
| 1950 JACOB Remote Control Mechanism Patent Print |
| 1950 SIMPSON CLARENCE Recoil Mechanism Patent |
| 1950 BAGOMATIC INC Bag Feed Mechanism Patent |
| 1950 RAYMOND Bag Feed Mechanism Patent Print Art |
| 1950 SIRI Parachute Release Mechanism Patent |
| 1950 DRAKE Rail Flaw Detector Mechanism Patent |
| 1950 HODGES WILLIAM Transfer Mechanism Patent |
| 1950 FRUEH Sliding Door Mechanism Patent Print |
| 1950 BARROWS Doll Eye Mechanism Patent Print Art |
| 1950 GEN MOTORS CORP Bolt Mechanism Patent Print |
| 1950 JAMES Button Feeding Mechanism Patent Print |
| 1950 KARNUTH Aircraft Control Mechanism Patent |
| 1950 HARRY Sewing Machine Feed Mechanism Patent |
| 1950 RHEIN LOUIS Firing Mechanism Patent Print |
| 1950 HIGHT Parachute Release Mechanism Patent |
| 1950 WILLIFORD Control Mechanism Patent Print |
| 1950 GEN TIME CORP Timing Mechanism Patent Print |
| 1950 WILLETTS Vehicle Aligning Mechanism Patent |
| 1950 BRONSON Coupler Operating Mechanism Patent |
| 1950 BENNETT Seconds Setting Mechanism Patent |
| 1950 CONRADSON Timing Mechanism Patent Print Art |
| 1950 JOSEPH Clock Winding Mechanism Patent Print |
| 1950 ORVILLE Railway Car Door Mechanism Patent |
| 1950 NEWELL GEORGE Winding Mechanism Patent |
| 1950 PATTEN HARRY Control Mechanism Patent Print |
| 1950 CHANNELL JAMES Firing Mechanism Patent |
| 1950 ISADORE Winch Driving Mechanism Patent |
| 1950 HANS Gun Control Mechanism Patent Print Art |
| 1950 THOMAS P SLATTERY Timing Mechanism Patent |
| 1950 CARPENTER Wing Fold Mechanism Patent Print |
| 1950 ROY Toy Gun Cocking Mechanism Patent Print |
| 1950 TEAR Stable Vertical Mechanism Patent Print |
| 1950 ROBERT Landing Gear Mechanism Patent Print |
| 1950 SANFORD Latch Tripping Mechanism Patent |
| 1950 JACOBUS Control Linkage Mechanism Patent |
| 1950 ARMA CORP Stabilizing Mechanism Patent |
| 1950 WATT Feed Mechanism For Machine Guns Patent |