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| All Patents in class 33/816 | |||||
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| Number | Date | Patentee | Title | Type | |
| 350,513 | Oct. 12, 1886 | A.L. Washburn | Micrometer Calipers | micrometers | |
| 350,516 | Oct. 12, 1886 | W.H. Wilkinson | Micrometer Calipers | micrometers | |
| 361,055 | Apr. 12, 1887 | A.H. Emery | Micrometer Gage | micrometers | |
| 363,709 | May 24, 1887 | A.E. Whitmore | Micrometer-Gage | measurement gauges | |
| 369,357 | Sep. 06, 1887 | J. Moffitt | Micrometer Gage | micrometers | |
| 373,705 | Nov. 22, 1887 | J.P. Wells | Micrometer Gage | micrometers | |
| 433,311 | Jul. 29, 1890 | L.S. Starrett | Micrometer Gage | micrometers | |
| 448,089 | Mar. 10, 1891 | L.S. Starrett | Micrometer Gage | micrometers | |
| 479,807 | Aug. 02, 1892 | E.L. Holcomb | Micrometer Calipers | micrometers | |
| 536,676 | Apr. 02, 1895 | M. Wilcox | Micrometer Caliper | micrometers | |
| 552,659 | Jan. 07, 1896 | A.B. Brown | Micrometer Calipers | micrometers | |
| 557,445 | Mar. 31, 1896 | F. Spalding | Micrometer Gage | micrometers | |
| 559,820 | May 12, 1896 | J.T. Slocomb | Micrometer Gage | ||
| 582,154 | May 04, 1897 | E.C. Clapp | Micrometer Gage | micrometers | |
| 664,978 | Jan. 01, 1901 | F. Spalding | Micrometer Gage | micrometers | |