| 1920 SAMUEL ENGLISH Track Terminal Patent Print |
| 1920 HORN SAMUEL Float For Boats Patent Print |
| 1920 BERRYHILL SAMUEL Automobile Lock Patent |
| 1920 SAMUEL BENNETT Incubator Patent Print Art |
| 1920 OTTO DROELLE Game SAMUEL L VITAL Patent |
| 1920 SAMUEL VIANCH Firearm Patent Print Art |
| 1920 SEESE SAMUEL Permutation Switch Patent |
| 1920 HITT SAMUEL Disappearing Turret Patent |
| 1920 SAMUEL Dimming Attachment Headlights Art |
| 1920 NICHOLS SAMUEL Animal Tag Patent Print Art |
| 1920 SAMUEL L VITAL Game Patent Print Art |
| 1920 MOTT SAMUEL Aeroplane Propeller Patent |
| 1920 MOTT SAMUEL Aircraft Propulsion Patent |
| 1920 CALOW STANLEY Incubator SAMUEL BENNETT |
| 1920 DOANE SAMUEL Artificial Bait Patent Print |
| 1920 GOOD SAMUEL Sanitary Hen'S Nest Patent |
| 1920 SAMUEL Tone Modifier Talking Machines Art |
| 1920 BEAMER SAMUEL Egg Tray Patent Print Art |
| 1920 NICHOLS SAMUEL Riveting Tool Patent Print |
| 1920 KUNTZ SAMUEL Fish Reel Patent Print Art |
| 1920 BROWN SAMUEL Fish Bait Or Lure Patent Print |
| 1920 BRINKER SAMUEL Car Brake Patent Print Art |
| ELEMENTARY ARITHMETIC 1920 Samuel Hamilton 1st ED |