| 1927 MCCAULEY Rudder Control Mechanism Patent |
| 1927 RENAUD Automobile Steering Mechanism Patent |
| 1927 O'CONNOR Shock Absorbing Mechanism Patent |
| 1927 SHIPLEY Axle Box Wedge Mechanism Patent |
| 1927 JOSEPH Boat Operating Mechanism Patent |
| 1927 FRED Talking Toy Mechanism Patent Print Art |
| 1927 NEEBE Locomotive Driving Mechanism Patent |
| 1927 CHIPMAN Talking Picture Transfer Mechanism Patent |
| 1927 JACK WILSON Brake Mechanism Patent Print |
| 1927 HAMMOND Detonator Control Mechanism Patent |
| 1927 JOHN Boat Propelling Mechanism Patent Print |
| 1927 SHERMAN Gun Firing Mechanism Patent Print |
| 1927 BUTLER Speed Accelerating Mechanism Patent |
| 1927 NELSON JOHN Locking Mechanism Patent Print |
| 1927 PAYNE Brake Operating Mechanism Patent |
| 1927 HARRY A DOUGLAS Locking Mechanism Patent |
| 1927 ALLEN Octave Key Mechanism Patent Print Art |
| 1927 TREVOR Ordnance Breech Mechanism Patent |
| 1927 CHARLES Tone Sustaining Mechanism Patent |
| 1927 MALOCSAY Adjusting Mechanism Patent 20297 |
| 1927 FLETCHER Steamship Driving Mechanism Patent |
| 1927 ESSEN PIETER Breech Mechanism Patent Print |
| 1927 LINDBLOM Drop Brake Staff Mechanism Patent |
| 1927 RUDOLF Thread Inserting Mechanism Patent |
| 1927 WALTER HUELLER Needle Mechanism Patent |
| 1927 CONWAY Lifting Mechanism Patent Print Art |
| 1927 OHLENDORF Bumper Mechanism Patent Print Art |
| 1927 VOICES INC Talking Toy Mechanism Patent |
| 1927 BAGHOS Propelling Mechanism Patent Print |
| 1927 SCHMIDT Shock Absorbing Mechanism Patent |
| 1927 WEIS JOHN Needle Mechanism Patent Print Art |
| 1927 MALOCSAY Automatic Feeding Mechanism Patent 20296 |
| 1927 MYRE Slide Game Mechanism Patent Print Art |
| 1927 CARL Motor Mechanism For Toy Boats Patent |
| 1927 EDMUND THUM Toy Mechanism Patent Print Art |
| 1927 BRANDWEIN Mattress Filling Mechanism Patent |
| 1927 WELLS Oil Burner Control Mechanism Patent |
| 1927 KINNE EDMUND Coupler Mechanism Patent Print |
| 1927 SMITH GEORGE Control Mechanism Patent Print |
| 1927 GILPIN Upper Buffer Mechanism Patent Print |
| 1927 SCHROEDER ERNEST Brake Mechanism Patent |
| 1927 BARTSCH HERBERT Brake Mechanism Patent |
| 1927 WILLIAM Shock Absorbing Mechanism Patent |
| 1927 LOUIS Locomotive Driving Mechanism Patent |
| 1927 THOMAS Power Transmission Mechanism Patent |
| 1927 GORTON Sear Mechanism For Guns Patent Print |
| 1927 HOWE Dumping Mechanism For Vehicles Patent |
| 1927 NEWTON Switch Throwing Mechanism Patent |
| 1927 CAMP PERCY Brake Mechanism Patent Print Art |
| 1927 HEBB Mine Car Braking Mechanism Patent |
| 1927 PETE Switch Operating Mechanism Patent |
| 1927 MADDER Shock Absorbing Mechanism Patent |
| 1927 CONWAY WILLIAM Lifting Mechanism Patent |
| 1927 GOETZENBERGER Fire Control Mechanism Patent |
| 1927 DEWALD Vehicle Dumping Mechanism Patent |
| 1927 JOHNSTON Boat Propelling Mechanism Patent |