| All Patents in class 33/203.1 |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
 | 428,193 | May 20, 1890 | G.B. Widdifield | Improvements in Combined Calipers and Balance-Wheel Truing-Pliers |
 | 738,723 | Sep. 08, 1903 | C.H. Jenkins | Watchmakers Calipers |
 | 848,831 | Apr. 02, 1907 | J.E. Kampe | Indicator Attachment For Calipers |
 | 1,001,278 | Aug. 22, 1911 | J.E. Kampe | Watchmaker's Poising Calipers |
| | 1,265,423 | May 07, 1918 | F.W. Burnett | Truing Attachment for Lathes |
 | 1,286,647 | Dec. 03, 1918 | J.B. Jones | Gage |
 | 2,039,226 | Apr. 28, 1936 | J.E. Kampe | Watchmakers Calipers |
