| 1921 BATES Motor Attachment For Bicycles Patent |
| 1921 MCCOOL Attachment For Pool Tables Patent |
| 1921 DUNLOP Rudder Attachment For Boats Patent |
| 1921 CRAIG Attachment For Motorcycle Patent 22138 |
| 1921 TEKULVE Attachment For Bells Patent Print |
| 1921 HEADLEY Attachment For Autos Patent Print |
| 1921 HENRY Attachment For Gun Slings Patent |
| 1921 JAN Sled Attachment For Vehicles Patent |
| 1921 BATES Attachment For Player Pianos Patent |
| 1921 JONES Attachment For Fishing Reels Patent |
| 1921 WHITE Pocket Attachment For Vehicles Patent |
| 1921 ELLA Attachment For The Backs Of Seats Art |
| 1921 MACK Unloading Attachment For Cars Patent |
| 1921 BROWN Weed Attachment For Fish Lures Patent |
| 1921 POST Attachment For Firearms Patent Print |
| 1921 LOUIS Attachment For Sleds Patent Print Art |
| 1921 DAVIES Calk Attachment For Horseshoes Art |
| 1921 DE Attachment For Sewing Machines Patent |
| 1921 NELSON Sleigh Attachment For Autos Patent |
| 1921 JOHN WALTER Attachment For Sleds Patent |
| 1921 FRANK Plectrum Attachment For Pianos Patent |