| 1959 Signal Gas Oil California Road Map |
| 1959 DECARIE Distress Signal Aeroplanes Art |
| 1959 OLSON Signal Frequency Change Detector Art |
| 1959 RCA CORP Automatically Controlled Signal Receivers |
| 1959 THESEN WILLIAM Hotbox Signal Patent Print |
| 1959 NICHOLAS Dump Body Warning Signal Patent |
| 1959 HENRI Automatic Signal Barrier Railroad Crossings |
| 1959 CAROLYN MAE THESEN JOHN R RARICK Hotbox Signal |
| 1959 ETHEL Automatic Signal Barrier Railroad Crossings |
| 1959 JAMES G WASSON Signal Device Patent Print |
| 1959 HENNION Telescoping Shopping Cart Checkout Signal |
| 1959 RCA CORP Signal Frequency Change Detector |
| 1959 KRYNAK Warning Signal For Rail Car Patent |
| 1959 PRELI Signal Limiting Means Synchronizer |
| 1959 GEN RAILWAY SIGNAL CO Automatic Switching System |
| 1959 SPENCER TUNSTALL Bobbin Signal Patent Print |
| 1959 ADRIANUS VREUGDENHIL Signal Lamp Patent |
| 1959 GEN Glass Insert Retainer Light Signal Spectacles |
| 1959 MILLER Automatically Controlled Signal Receivers |
| 1959 ADRIANUS Signal Lamp Art |
| 1959 GEN RAILWAY SIGNAL CO Railway Block Signaling |
| 1959 BOOKWALTER WILLIAM Signal Device Patent |
| 1959 GEN RAILWAY SIGNAL CO Weight Detector Railway Cars |
| 1959 LOLMAUGH Tow Target Having Combustion Signal Means |
| 1959 CNR Rules Book For Air Brakes & Signal Equipment |