| 1937 BLISS CARL Timing Mechanism Patent Print |
| 1937 MCGOWAN THOMAS Brake Mechanism Patent Print |
| 1937 COLE Clock Mechanism Patent Print Art |
| 1937 HEITNER WILLIAM Clutch Mechanism Patent |
| 1937 NEWMAN MAX Sewing Mechanism Patent Print |
| 1937 WORTH COMPANY Car Loading Mechanism Patent |
| 1937 O'CONNOR Hand Brake Mechanism Patent Print |
| 1937 ANTHONY CO Tipping Mechanism Patent Print |
| 1937 RILEY Brake Actuating Mechanism Patent |
| 1937 DOUGLAS Switching Mechanism Patent Print |
| 1937 DRAKE Rail Flaw Detector Mechanism Patent |
| 1937 ALLEN EARL Recording Mechanism Patent Print |
| 1937 HURD EDWIN Locking Mechanism Patent Print |
| 1937 NICHOLAS Driving Mechanism Patent Print Art |
| 1937 KLAU Thread Cutting Mechanism Patent Print |
| 1937 UNION Hand Brake Mechanism Art Print Patent |
| 1937 PERRY Rail Flaw Detector Mechanism Patent |
| 1937 HUTCHINSON Wedge Adjusting Mechanism Patent |
| 1937 COLE EDWARD Clock Mechanism Patent Print |
| 1937 MILLS Ball Stop Mechanism Pin Game Patent |
| 1937 ERNESTO Propelling Mechanism Patent Print |
| 1937 LARSSON Coupling Mechanism Patent Print Art |
| 1937 MICHAEL Car Loading Mechanism Patent Print |
| 1937 OHIO BRASS CO Coupling Mechanism Patent |
| 1937 LAUTERBUR Timing Mechanism Patent Print Art |
| 1937 MINER INC W H Buffing Mechanism Patent |
| 1937 ALLEN Lifeboat Propelling Mechanism Patent |
| 1937 WHEDON Adjustable Seat Mechanism Patent |
| 1937 ANTHONY WILLIAM Tipping Mechanism Patent |
| 1937 MCMAHON Reciprocating Mechanism Patent |
| 1937 AMERICAN BRAKE CO Brake Mechanism Patent |
| 1937 EMIL Time Measuring Mechanism Patent Print |
| 1937 MATTSON BERNARD Game Mechanism Patent Print |
| 1937 BRICK Dump Body Hoist Mechanism Patent |
| 1937 JOSEPH MCARTHUR Winding Mechanism Patent |
| 1937 STEVENS ALBERT Valve Mechanism Patent Print |
| 1937 FINNEGAN Driving Mechanism Patent Print Art |
| 1937 MINER INC W H Clutch Mechanism Patent Print |
| 1937 GILARDONE Embroidery Mechanism Patent Print |
| 1937 SPERRY Rail Flaw Detector Mechanism Patent |
| 1937 JONES Rail Flaw Detector Mechanism Patent |
| 1937 SVENDSEN Boat Propelling Mechanism Patent |
| 1937 GEARTY Trimming Mechanism Attachment Patent |
| 1937 STANLEY Alarm Mechanism For Clocks Patent |
| 1937 PETER Diaphragm Control Mechanism Patent |
| 1937 SCHOEPF Railway Brake Mechanism Patent |
| 1937 DENTLER ARNOLD Buffing Mechanism Patent |
| 1937 ADAMS Mobile Conveyer Mechanism Patent |
| 1937 ECLIPSE AVIAT CORP Driving Mechanism Patent |
| 1937 CHANDLER Boat Propelling Mechanism Patent |
| 1937 BRASSELL Time Actuated Mechanism Patent |
| 1937 BASELT WALTER Brake Mechanism Patent Print |
| 1937 GERRIT WAALKES Conveyer Mechanism Patent |