| 1930 SAILER Sewing Machine Attachment Patent |
| 1930 KENNEY Attachment For Golf Clubs Patent |
| 1930 MORETON Attachment Musical Instruments Art |
| 1930 SILVA Wheel Attachment For Seaplanes Patent |
| 1930 JOHNSON Attachment Fretted Musical Instruments |
| 1930 HUGH Tractor Attachment Automobiles Art |
| 1930 GEORGE Buttonhole Attachment Sewing Machines |
| 1930 FRANK Shoe Stitcher Attachment Patent Print |
| 1930 JOSEPH Parachute Attachment Aeroplanes Art |
| 1930 PAULSON Floating Attachment Submarines Art |
| 1930 GOSNELL Locomotive Wedge Bolt Attachment |
| 1930 WIDDIS Antifriction Attachment Vessels Art |
| 1930 FINIS TALIAFERRO Curtain Attachment Patent |
| 1930 HARRY Attachment Stringed Musical Instruments |
| 1930 CUTHBERT CO Truck Attachment Sleds Art |
| 1930 CONS AIRCRAFT CORP Attachment Clamp Patent |
| 1930 PARSONS Wheelbarrow Attachment Patent Print |
| 1930 MOSES Automobile Safety Attachment Patent |
| 1930 DAVENPORT Swivel Attachment For Fish Hooks |
| 1930 ARTHUR Attachment Binding Strips To Articles |
| 1930 HENRY Roller Skate And Attachment Patent |
| 1930 LORING Identifying Attachment Motor Vehicles |
| 1930 FREDERICK Vision Attachment Patent Print |
| 1930 FISH Lighting Attachment Sewing Machines Like |
| 1930 WENDT Propeller Attachment Patent Print Art |
| 1930 MCCONNELL Roller Attachment Patent Print |
| 1930 KNOPP Violin Bow Attachment Patent Print |
| 1930 SHAVER Chromatic Playing Attachment Harmonicas |
| 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 CARMICHAEL Sewing Machine Attachment Holder |
| 1930 GUSTAF Sustaining Attachment Airplanes Art |
| 1930 RALPH Attachment Fretted Musical Instruments |
| 1930 DUNN Rack Attachment Pocket Billiard Tables |
| 1930 SANDERSON Cutting Attachment Patent Print |
| 1930 BAKER Automobile Attachment Patent Print |
| 1930 GREIST CO Sewing Machine Attachment Holder |
| 1930 DUANE Life Saving Attachment Submarines Art |
| 1930 HATCHER Muzzle Attachment For Guns Patent |
| 1930 SINGER MFG CO Sewing Machine Attachment Art |
| 1930 GEORGE Attachment For Motor Boats Patent |
| 1930 CAMPBELL Wrist Watch Attachment Patent |
| 1930 ROBERT Guide Attachment Presser Bars Art |
| 1930 HAKE Attachment For Sewing Machines Patent |
| 1930 LORENZEN Truck Attachment For Sleds Patent |
| 1930 LOHMAN Attachment Button Sewing Machines |
| 1930 CAMPBELL Buttonhole Attachment Sewing Machines |
| 1930 UNITED Attachment Binding Strips To Articles |
| 1930 COLLINS Inboard Motor Boat Attachment |