| 1930 LUNDBORG Method Shipping Engines Art Print |
| 1930 ROMINE Method Shipping Metal Art Print |
| 1930 HARRY L DIEHL Method Twisting Gut Like Art |
| 1930 JOSEPH Method Filling Upholstery Art Print |
| 1930 PRIEST Method Making Belaying Cleats Art |
| 1930 LINN Method Raising Submerged Ships Art |
| 1930 GREEN Method Cooling Cargo Space In Ships |
| 1930 JORGENSEN Means Method Establishing Communication |
| 1930 MARKON INC Method Of Producing Doll Eyes |
| 1930 MONT Torpedo Method Making Same Art Print |
| 1930 HATSUTARO Method Fitting Fuses To Firecrackers |
| 1930 FOX Method Of Shaping Hollow Bodies Patent |
| 1930 SCHMIDT Skate Runner Support Method Making Same |
| 1930 ALEXANDER Method Of Producing Doll Eyes Art |
| 1930 FRANCIS Method Of Loading Airplanes Patent |
| 1930 GAY Method Means Propelling Ships Art Print |
| 1930 CEDRIC Method Creating Marine Effects Art |
| 1930 LAWRENCE Hosiery Method Making Same Art |
| 1930 PETER Method Manufacture Boats Art Print |
| 1930 BUDD EDWARD G CO Method Filling Upholstery |
| 1930 CLAY Method Treating Baseball Bats Golf Clubs Etc |
| 1930 UNION Method Producing Sewed Articles Art |
| 1930 DE Method Propulsion By Suction Repulsion |
| 1930 UNION Hem Sewed Articles Method Making Same |
| 1930 CHARLES Piping Method Forming Same Art |
| 1930 GRUMAN Method Operating On Tubular Articles |
| 1930 DOW Method Of Stabilizing Ships Patent |
| 1930 ALFRED Plaited Hat Lining Method Making Same |
| 1930 WILLIAMSON Method Making Track Torpedoes |
| 1930 ALBERTO Salute Method Making Same Art Print |
| 1930 VON Body Support Method Producing Same Art |
| 1930 JOSEPH Method Producing Sewed Articles Art |
| 1930 HOLBROOK Steel Hull Method Building Same |
| 1930 LOUIS Method Directing Torpedoes Art Print |
| 1930 DREYFUS Printing Fabrics Method Patent 45231 |
| 1930 CONTINENTAL MOTORS CORP Method Shipping Engines |
| 1930 DOW CHEMICAL CO Method Stabilizing Ships |
| 1930 THOMPSON BROS BOAT CO Method Manufacture Boats |
| 1930 FOKKER Method Means Operating Airlines Art |
| 1930 PAUL Life Saving Method Submarine Crews Art |
| 1930 PARKER WIRE GOODS CO Method Making Belaying Cleats |
| 1930 SEAMAN Piping Method Forming Same Art Print |
| 1930 LEWIS Method Operating On Tubular Articles |
| 1930 MOFFATT Hem Sewed Articles Method Making Same |
| 1930 MATTHEWS Method Twisting Gut Like Art |
| 1930 LOUIS Method Torpedo Firing Operations Art |