Patents for American Watch Tool Co. |
Patents 1 -
6
of 6
|
Number | Date | Patentee | Title | Type |
171,082 | Dec. 14, 1875 | G.F. Ballou | Chuck and Centerer | metal lathe chucks |
243,467 | Jun. 28, 1881 | S.I. Snyder | Chuck for holding watch-bezels | watchmaker |
250,992 | Dec. 13, 1881 | S.I. Snyder | Chuck for watch-makers | watchmaker |
936,422 | Oct. 12, 1909 | F.W. Derbyshire | Tool Rest for Watchmakers' Lathe | watchmakers lathes |
1,001,121 | Aug. 22, 1911 | G.W. Bowers | Test-Indicator | measurement gauges |
1,059,731 | Apr. 22, 1913 | L.A. Holman | Tool Rest for Watchmakers' Lathes | watchmakers lathes |