| All Patents of Type: comparators |
Patents 1 -
15
of 40
      |
| Number | Date | Patentee | Title | Type |
| 292,415 | Jan. 22, 1884 | S. Darling | Comparator | comparators |
| 764,622 | Jul. 12, 1904 | A.E. Outerbridge, Jr. | Translucent Color-Comparator or Color-Screen | comparators |
| 1,703,933 | Mar. 05, 1929 | J. Hartness | Optical Comparator | comparators |
| 1,737,579 | Dec. 03, 1929 | R.E. Flanders | Tap Holder for Comparators | comparators |
| 1,745,537 | Feb. 04, 1930 | J. Hartness | Cradle Carriage for Comparators | comparators |
| 1,908,276 | May 09, 1933 | E.H. Aldeborgh | Comparator Gauge | comparators |
| 2,031,201 | Feb. 18, 1936 | R.O. Beardsley | Attachment for Comparators | comparators |
| 2,035,780 | Mar. 31, 1936 | R.R. Finn, E.T. Bysshe, R.O. Beardsley | Comparator | comparators |
| 2,173,464 | Sep. 19, 1939 | A.H. Emery, E.H. Aldeborgh | Combined Surface Gage and Comparator | comparators |
| 2,222,165 | Nov. 19, 1940 | R.R. Finn, R.O. Beardsley | Comparator | comparators |
| 2,307,831 | Jan. 12, 1943 | A.H. Emery | Comparator | comparators |
| 2,307,950 | Jan. 12, 1943 | G.P. Barrrott, H.F. Plaut | Linear Dimension Gauge or Comparator | comparators |
| 2,336,695 | Dec. 14, 1943 | J. Maurer | Comparator | comparators |
| 2,419,433 | Apr. 22, 1947 | W.F. Aller | Comparator Gauge | comparators |
| 2,431,021 | Nov. 18, 1947 | G.A. Bourdelais | Thread Checking Comparator Gauge | comparators |
