| 1949 MILL Aircraft Release Mechanism Patent |
| 1949 WILCOX Safety Mechanism For Firearms Patent |
| 1949 HAAS Gun Loading Mechanism Patent Print Art |
| 1949 WALTER Truck Unloading Mechanism Patent |
| 1949 KING SEELEY CORP Timer Mechanism Patent |
| 1949 MESH Rail Flaw Detector Mechanism Patent |
| 1949 DALY Adjustable Cam Mechanism Patent Print |
| 1949 GALLAGHER Timing Mechanism Patent Print Art |
| 1949 ANDERSON Gripper Mechanism Patent Print Art |
| 1949 ADDUCI Alarm Set And Stop Mechanism Patent |
| 1949 MAY SUMMERBELL Cocking Mechanism Patent |
| 1949 CHALMERS Coupling Mechanism Patent Print |
| 1949 DRAKE Rail Flaw Detector Mechanism Patent |
| 1949 IBM Adjustable Cam Mechanism Patent Print |
| 1949 KNOWLTON Gun Primer Mechanism Patent Print |
| 1949 MINER INC W H Buffing Mechanism Patent |
| 1949 COM SPRINGFIELD Sear Mechanism Patent Print |
| 1949 CUTHBERT Delay Action Mechanism Patent |
| 1949 ELEANOR M WESSON Sear Mechanism Patent |
| 1949 BERNARD Swash Plate Mechanism Patent Print |
| 1949 KENDALL Fire Control Mechanism Patent Print |
| 1949 GAIDOS Fire Control Mechanism Patent Print |
| 1949 BROWNING VAL Firing Mechanism Patent Print |
| 1949 LOCHHEAD Sear Release Mechanism Patent |
| 1949 LEE Brake Mechanism For Rail Cars Patent |
| 1949 COOK Motion Transmission Mechanism Patent |
| 1949 GAENSSLE PAUL Brake Mechanism Patent Print |
| 1949 CUMMINS Boat Oar Mechanism Patent Print Art |
| 1949 HARRY SLAVIN Retarding Mechanism Patent |
| 1949 KONOLD Bow Trigger Mechanism Patent Print |
| 1949 STANLEY GIFFIN Switch Mechanism Patent |
| 1949 SPERRY CORP Gyro Control Mechanism Patent |
| 1949 RICHARDSON Window Mechanism Patent Print |
| 1949 US NAVY Delayed Release Mechanism Patent |
| 1949 GONGWER Delayed Release Mechanism Patent |
| 1949 TARNEY Motion Translation Mechanism Patent |
| 1949 GIBSON Elevating Mechanism Patent Print Art |
| 1949 OLANDER ROLAND Buffing Mechanism Patent |
| 1949 BOEING CO Aircraft Release Mechanism Patent |
| 1949 PAUL Board Leveling Mechanism Patent Print |
| 1949 KNOWLTON Gun Charging Mechanism Patent |
| 1949 JANSON Motion Translating Mechanism Patent |
| 1949 THORVALD MADLAND Lift Mechanism Patent |
| 1949 DEAN Railway Vehicle Truck Mechanism Patent |
| 1949 NISSEN Overload Release Mechanism Patent |
| 1949 POLLOCK Electric Firing Mechanism Patent |
| 1949 GAIDOS Buffer Mechanism For Firearms Patent |
| 1949 NEWELL Gyro Control Mechanism Patent Print |
| 1949 RAICHE Handling Line Mechanism Patent Print |
| 1949 SKINNER LESLIE Firing Mechanism Patent |
| 1949 GLENN MORSE Timer Mechanism Patent Print |
| 1949 ALFRED Escapement Mechanism Patent Print |
| 1949 ROEMER Safety Mechanism For Firearms Patent |
| 1949 WOOD Truck Body Hoisting Mechanism Patent |
| 1949 RATAICZAK Breech Bolt Mechanism Patent |
| 1949 TOBIAS Parachute Release Mechanism Patent |
| 1949 SANFORD Latch Tripping Mechanism Patent |
| 1949 FREDERIC Firing Mechanism Control Patent |
| 1949 US SEC WAR Fire Control Mechanism Patent |
| 1949 KING Canopy Operating Mechanism Patent |
| 1949 BUDD CO Brake Mechanism Patent Print Art |
| 1949 INT REGISTER CO Timing Mechanism Patent |
| 1949 OLIVER Gun Primer Mechanism Patent Print |
| 1949 JOHNSON Hoist And Tow Mechanism Patent |
| 1949 ALFRED Cartridge Feeding Mechanism Patent |