| Patents for Blake & Johnson Co. |
Patents 1 -
15
of 15
      |
| Number | Date | Patentee | Title | Type |
| 919,435 | Apr. 27, 1909 | E.S. Ingraham | Rise-and-fall motion for rivet-machines | |
| 929,628 | Jul. 27, 1909 | A.C. Pilcher | Rivet-ejector for heading-machines | |
| 1,004,247 | Sep. 26, 1911 | E.W. Duston | Ejecting mechanism for heading-machines | |
| 1,012,341 | Dec. 19, 1911 | E.W. Durston | Punch-block for heading-machines | |
| 1,015,382 | Jan. 23, 1912 | E.W. Duston | Cutting-off and carrying mechanism for heading-machines | |
| 1,026,082 | May 14, 1912 | E.W. Duston | Heading mechanism | |
| 1,026,083 | May 14, 1912 | E.W. Duston | Machine for feeding headed blanks | |
| 1,040,485 | Oct. 08, 1912 | A.H. Adams | Thread-rolling machine | |
| 1,104,029 | Jul. 21, 1914 | K. Weiss | Machine for feeding headed blanks | |
| 1,111,833 | Sep. 29, 1914 | F.C. Hoffman | Nut-tapping machine | |
| 1,346,812 | Jul. 20, 1920 | E.W. Duston | Collapsible spool | |
| 1,352,587 | Sep. 14, 1920 | E.W. Durston | Rolling-mill bridle | |
| 1,687,134 | Oct. 09, 1928 | W.S. Gilmour, J.M. Lynch | Machine for feeding headed blanks | |
| 1,692,456 | Nov. 20, 1928 | W.S. Gilmour, J.M. Lynch | Machine for feeding headed blanks | |
| 1,796,790 | Mar. 17, 1931 | E.S. Ingraham | Attachment for automatic screw machines | |
