| All Patents in class 33/813 |
Patents 31 -
45
of 65
      |
| Number | Date | Patentee | Title | Type |
| 1,196,188 | Aug. 29, 1916 | J. Wahlberg | Micrometer | micrometers |
| 1,196,789 | Sep. 05, 1916 | W.F. Koelpin | Calipering Tool | measurement gauges |
| 1,200,679 | Oct. 10, 1916 | I.A. Williams | Quick Action Micrometer | micrometers |
| 1,226,396 | May 15, 1917 | J.T. Slocomb | Micrometer Gage | micrometers |
| 1,254,607 | Jan. 22, 1918 | W.F. Koch | Micrometer | micrometers |
| 1,299,256 | Apr. 01, 1919 | W.C. Stenger | Micrometer | micrometers |
| 1,305,872 | Jun. 03, 1919 | B. Bollie | Micrometer Drilling Gage | special purpose gauges |
| 1,307,816 | Jun. 24, 1919 | J.F. Garbin | Micrometer | micrometers |
| 1,401,585 | Dec. 27, 1921 | V.D. Collins, A.F. Collins | Spark Plug | spark plugs |
| 1,416,810 | May 23, 1922 | S.A. Foster | Micrometer Gage | micrometers |
| 1,536,576 | May 05, 1925 | C.B. Fields | Caliper | measuring calipers |
| 2,071,315 | Feb. 23, 1937 | C.F. Axelson | Micrometer | micrometers |
| 2,357,066 | Aug. 29, 1944 | F.V. Adams | Micrometer Caliper | micrometers |
| 2,443,126 | Jun. 08, 1948 | C.L. Whitaker | Micrometer | micrometers |
| 2,445,402 | Jul. 20, 1948 | B.V. Malmberg | Gear Testing Device | measurement gauges |
