| 1958 YETTER Drive Means Mechanical Horse Art |
| 1958 LEONARD Actuator Mechanical Control System |
| 1958 HOYER Mechanical Recoil Compensator Patent |
| 1958 GOLDA Mechanical Sound Reproducing Art |
| 1958 GEORGES Impact Fuzes With Mechanical Retardation |
| 1958 RICHARDS Delayed Action Mechanical Rope Cutter |
| 1958 HAZEN Precision Mechanical Control Patent |
| 1958 PHOTOGRAPHIC ANALYSIS INC Mechanical Memory |
| 1958 UNITED AIRCRAFT CORP Mechanical Pitch Lock |
| 1958 DUNCAN Mechanical Sound Reproducing Art |
| 1958 BARNETT JOHN Mechanical Memory Patent Print |
| 1958 PHILIPS CORP Maintaining Mechanical Oscillations |
| 1958 TURE Safety Circuits Electro Mechanical Braking |
| 1958 MEYER Maintaining Mechanical Oscillations |
| 1958 RICHARD Gravity Actuated Mechanical Toy Art |
| 1958 PAUL Mechanical Tuning Hawaiian Guitar Art |
| 1958 FRANK Mechanical Oscillators Patent Print |
| 1958 THOMPSON Mechanical Stick Force Producer |
| 1958 FRANKLAND Mechanical Pitch Lock Patent |
| 1958 BENDIX AVIAT CORP Precision Mechanical Control |
| 1958 MEFINA SA Impact Fuzes With Mechanical Retardation |
| 1958 MECHANICAL HANDLING SYS INC Conveyor System |