| All Patents in class 33/556 |
Patents 31 -
45
of 68
      |
| Number | Date | Patentee | Title | Type |
| 1,891,196 | Dec. 13, 1932 | C.E. Ruf, E.H. Aldeborgh | Combination Dial Indicator | |
| 1,937,936 | Dec. 05, 1933 | C.E. Ruf, E.H. Aldeborgh | Dial Indicator Gauge | |
| 2,015,986 | Oct. 01, 1935 | A.H. Emery, E.H. Aldeborgh | Ninety Degree Dial Indicator | |
| 2,074,279 | Mar. 16, 1937 | J.G. Sisson | Dial Indicator | dial indicator gauges |
| 2,090,495 | Aug. 17, 1937 | E.J. Witchger | Surface test indicator | |
| 2,091,376 | Aug. 31, 1937 | J. Reich | Surface Test Indicator | test indicators |
| 2,099,930 | Nov. 23, 1937 | A.H. Emery | Shockproof Attachment for Dial Indicator | measurement gauges |
| 2,113,414 | Apr. 05, 1938 | B.F. Stowell | Gauge Mechanism | grinding attachments |
| 2,121,848 | Jun. 28, 1938 | A.G. Winters | Indicator | measurement gauges |
| 2,139,251 | Dec. 06, 1938 | W.F. Aller | Measuring Instrument | measurement gauges |
| 2,158,649 | May 16, 1939 | J.B. Armitage | Precision Apparatus for Machine Tools | milling machine accessories |
| 2,165,017 | Jul. 04, 1939 | J.G. Sisson | Dial Indicator | measurement gauges |
| 2,178,745 | Nov. 07, 1939 | A.H. Emery | Shockproof Dial Indicator | measurement gauges |
| 2,224,281 | Dec. 10, 1940 | G.D. Webber | Measuring Instrument | measurement gauges |
| 2,228,497 | Jan. 14, 1941 | E.J. Witchger | Indicating device for measuring instruments | |
