| 1920 ALBERT Adjustable Attachment Buffer Patent |
| 1920 ANDREW Attachment For Automobiles Patent |
| 1920 WILMOT HARRY Banjo Attachment Patent Print |
| 1920 JAMES EGAN Towing Attachment Patent Print |
| 1920 DE Attachment For Sewing Machines Patent |
| 1920 XAVIER Choke Attachment For Shotguns Patent |
| 1920 MACKIN Attachment For Oil Boxes Patent |
| 1920 HOWE OLAF Gun Attachment Patent Print Art |
| 1920 JESSE LINES Auto Attachment Patent Print |
| 1920 OLANDER Automobile Attachment Patent Print |
| 1920 SWIFT Skate Scabbard Attachment Patent |
| 1920 HEWITT Finger Board Attachment Patent Print |
| 1920 HERBERT LOOMIS Bridle Attachment Patent |
| 1920 NYLIN Attachment For Hand Trucks Patent |
| 1920 OTTO EISELT Bicycle Attachment Patent Print |
| 1920 BORCHERT Marine Motor Attachment Patent |
| 1920 AXT Sewing Machine Attachment Patent Print |
| 1920 BIGGS GEORGE Beehive Attachment Patent |
| 1920 KRASMAUSKIS Hair Dressing Attachment Patent 39190 |
| 1920 FREDERICK Sewing Machine Attachment Patent |
| 1920 KITCHEN Attachment For Boats Patent Print |
| 1920 LAGUE Telephone Attachment Patent Print Art |
| 1920 MCLEOD Light Attachment For Guns Patent |
| 1920 AGATINO Sewing Machine Attachment Patent |
| 1920 ROBINSON Sewing Machine Attachment Patent |
| 1920 HILL WILLIAM Incubator Attachment Patent |
| 1920 HUNDLEY CHARLES Draft Attachment Patent |
| 1920 CROSBIE Fishline Attachment Patent Print |
| 1920 ALBERTO Sewing Machine Attachment Patent |
| 1920 BAYNARD Sewing Machine Attachment Patent |
| 1920 PANCOAST Bumper Attachment Patent Print Art |
| 1920 FOX Safety Attachment For Airplanes Patent |
| 1920 CLOVIS Sewing Machine Attachment Patent |
| 1920 MORSE Sleigh Attachment For Autos Patent |
| 1920 EMILE LACOSTE Violin Attachment Patent |
| 1920 SCHOLZ Saddle Attachment Motorcycle Patent 22124 |
| 1920 FIREMAN Attachment For Feed Bags Patent |
| 1920 HEADLEY Locking Attachment Patent Print Art |
| 1920 HUGH GALBRAITH Violin Attachment Patent |