| All Patents in class 72/403 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 459,931 | Sep. 22, 1891 | J. Gutberlet | Machine for Sharpening Drills | power hammers |
| 490,060 | Jan. 17, 1893 | W.J. Bayrer | Machine for cutting and bending sheet metal | cutting and trimming machines |
| 505,541 | Sep. 26, 1893 | G.S. Strong | Forging and bending die | electrical devices |
| 1,046,088 | Dec. 03, 1912 | P. Kruse | Machine for making can-bodies | can making machines |
| 1,636,803 | Jul. 26, 1927 | J.M. Brown | Machine for folding stovepipe blanks | sheet metal brakes |
| 1,736,715 | Nov. 19, 1929 | J.J. Marshall | Method of and apparatus for forming hook bars | |
| 1,799,483 | Apr. 07, 1931 | W.A. Smith | Method of and machine for making one-piece mop heads | |
| 2,266,997 | Dec. 23, 1941 | C.F. Sherman | Making links for machine-gun belts | |
| 2,552,617 | May 15, 1951 | C.J. Bath | Tangent Bender With Flange Turning Device | metal bending machines |
| 2,828,531 | Apr. 01, 1958 | C.J. Bath | Method of Making a Helicopter Blade | manufacturing processes |
| 3,121,352 | Feb. 18, 1964 | W.B. McCardell | Tooth Forming Method and Apparatus | gear cutting tools |
