| All Patents in class 33/574 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 34,412 | Feb. 18, 1862 | F. Deluce | Centering Implement | center punches |
| 93,937 | Aug. 17, 1869 | D.A. Wilcox | Improved centring-awl | layout tools |
| 611,625 | Oct. 04, 1898 | J.E. Goddard | Gaging Implement | punches |
| 713,021 | Nov. 04, 1902 | L.S. Starrett | Prick Punch and Spacing Tool | punches |
| 824,867 | Jul. 03, 1906 | W. Houghton | Combined Marking-Peg and Center-Punch | pin punches |
| 1,000,659 | Aug. 15, 1911 | W.D. Adams | Marking and Spacing Device | marking gauges |
| 1,777,653 | Oct. 07, 1930 | H.C. Rehm | Center Punch | metal punches |
