| 1930 SAILER Sewing Machine Attachment Patent |
| 1930 KENNEY Attachment For Golf Clubs Patent |
| 1930 SILVA Wheel Attachment For Seaplanes Patent |
| 1930 FRANK Shoe Stitcher Attachment Patent Print |
| 1930 FINIS TALIAFERRO Curtain Attachment Patent |
| 1930 CONS AIRCRAFT CORP Attachment Clamp Patent |
| 1930 PARSONS Wheelbarrow Attachment Patent Print |
| 1930 MOSES Automobile Safety Attachment Patent |
| 1930 HENRY Roller Skate And Attachment Patent |
| 1930 FREDERICK Vision Attachment Patent Print |
| 1930 WENDT Propeller Attachment Patent Print Art |
| 1930 MCCONNELL Roller Attachment Patent Print |
| 1930 KNOPP Violin Bow Attachment Patent Print |
| 1930 GWINN JR Attachment Clamp Patent Print Art |
| 1930 CONNELL Attachment For Violins Patent Print |
| 1930 LUDWIG Attachment Plug Ornamentation Patent 30249 |
| 1930 PFLAUM Golf Bag Attachment Patent Print Art |
| 1930 SANDERSON Cutting Attachment Patent Print |
| 1930 BAKER Automobile Attachment Patent Print |
| 1930 HATCHER Muzzle Attachment For Guns Patent |
| 1930 GEORGE Attachment For Motor Boats Patent |
| 1930 CAMPBELL Wrist Watch Attachment Patent |
| 1930 HAKE Attachment For Sewing Machines Patent |
| 1930 LORENZEN Truck Attachment For Sleds Patent |