| All Patents in class 33/810 |
Patents 16 -
30
of 37
      |
| Number | Date | Patentee | Title | Type |
| 976,559 | Nov. 22, 1910 | F. Devecis, J. Dittrich | Caliper Gage | rule attachments |
| 1,002,149 | Aug. 29, 1911 | H. Hauser | Vernier Calipers | calipers |
| 1,007,229 | Oct. 31, 1911 | M. Nielsen | Gage | indicating calipers |
| 1,107,276 | Aug. 18, 1914 | H.P. Farrington | Combination Tool | combination tools |
| 1,129,699 | Feb. 23, 1915 | C.T. Ludwig | Instrument for Taking Bertillion Measurments | measuring apparatus |
| 1,129,705 | Feb. 23, 1915 | R.J. Messier | Measuring Instrument | calipers |
| 1,153,785 | Sep. 14, 1915 | V.R. Helin | Combined Micrometer and Scale | indicating calipers |
| 1,329,911 | Feb. 03, 1920 | M. Lenti | Gage | indicating calipers |
| 1,342,288 | Jun. 01, 1920 | R. Ichiba | Drill and Wire Gage | drill and wire gages |
| 1,343,227 | Jun. 15, 1920 | H.J. Ostdiek | Caliper Rule | indicating calipers |
| 1,375,747 | Apr. 26, 1921 | M. Zigray | Rivet Gage | special purpose gauges |
| 1,402,497 | Jan. 03, 1922 | W.A. Hoffman | Calipers | calipers |
| 1,411,685 | Apr. 04, 1922 | M. Dubowik | Caliper with Screw Adjustment | calipers |
| 1,420,700 | Jun. 27, 1922 | A.W. Hoffmann | Calipers | calipers |
| 1,424,492 | Aug. 01, 1922 | H. Leschen | Caliper Rule | folding rules |
