| 1920 WILLIAMS Ornamental Automobile Tire Patent 49628 |
| 1920 ECKRODE Ornamental Design Tire Tread Patent 49675 |
| 1920 SWAN Ornamental Design Tire Tread Patent 49638 |
| 1920 HOLGZER Elastic Tire Tread ZONTA Patent 5876 |
| 1920 GOODYEAR TIRE & RUBBER Manifold Patent |
| 1920 ACKLES Design Tire Casing LINCOLN Patent 49693 |
| 1920 KRAFT Ornamental Design Tire AJAX Patent 49660 |
| 1920 CAMPBELL WALTER Tire Lock Patent Print Art |
| 1920 GOODYEAR TIRE & RUBBER Kite Balloon Patent |
| 1920 CHRISTY Ornamental Design Tire Patent 49679 |
| 1920 GAUSS Ornamental Design Tire Vehicle Patent 49671 |
| 1920 ALLARD Design Tire Tread MILLIKAN Patent 49692 |
| 1920 BREITENSTEIN Design Tire Tread WILSON Patent 49683 |
| 1920 GATES Ornamental Design Rubber Tire Patent 49672 |
| 1920 DOWNES Non Skid Tire Tread TIRE Patent 49676 |
| 1920 MCELRATH Design Pneumatic Tire Patent 49652 |
| 1920 LEMUEL Automobile Tire Chain Holder Patent |
| 1920 BATCHELLER Design Automobile Tire Patent 49691 |
| 1920 VOIGHT HENRY Tire Lock Patent Print Art |
| 1920 SINGELETON Tire Tool Transportation Patent 22125 |