| All Patents in class 33/520 |
Patents 16 -
30
of 32
      |
| Number | Date | Patentee | Title | Type |
| 1,176,567 | Mar. 21, 1916 | W.H. Kamowske | Micrometer Attachment | micrometer attachments |
| 1,299,256 | Apr. 01, 1919 | W.C. Stenger | Micrometer | micrometers |
| 1,365,203 | Jan. 11, 1921 | A.H. Starrett | Tool maker's button | |
| 1,365,289 | Jan. 11, 1921 | C. Snell | Center Gage and Micrometer | center finders |
| 1,410,196 | Mar. 21, 1922 | J.A. Krivacs | Center Gauge | special purpose gauges |
| 1,433,820 | Oct. 31, 1922 | H.H. Huesman | Combination Height Gauge, Surface Gauge, Scriber, etc. | surface gauges |
| 1,570,831 | Jan. 26, 1926 | C.E. Whitney, Executor, E.A. Hanson, Executor, B.M. Hanson, deceased (Estate of) | Measuring Device | micrometer attachments |
| 1,573,347 | Feb. 16, 1926 | P.C. Labasse | Caliper | micrometers |
| 1,583,585 | May 04, 1926 | E.A. Emory | Measuring and Centering Device | bore gages |
| 1,598,248 | Aug. 31, 1926 | S.S. Paine | Measuring Gauge for Rolls | measuring tools |
| 2,092,653 | Sep. 07, 1937 | H.M. Nielsen | Transfer-punch buttons | layout tools |
| 2,522,886 | Sep. 19, 1950 | D.D. Moore | Stencil Cutting Gauge | measurement gauges |
| 2,829,436 | Apr. 08, 1958 | H.E. Lehnwebber | Centering Gauge | center marking gauges |
| 2,860,415 | Nov. 18, 1958 | E. Danilow | Layout Gage | measurement gauges |
| 2,958,133 | Nov. 01, 1960 | C.A. Seitz | Adjustable Center Line Scribe | center marking gauges |
