| Patents for Brown & Sharpe Mfg. Co. |
Patents 226 -
240
of 547
      |
| Number | Date | Patentee | Title | Type |
| 1,794,340 | Feb. 24, 1931 | M.K. Parkhurst | Optical Measuring Device | measurement gauges |
| 1,794,341 | Feb. 24, 1931 | M.K. Parkhurst | Optical Measuring Device | |
| 1,794,361 | Mar. 03, 1931 | L.F. Nenninger, B.P. Graves, E.J. Kearney, J.B. Armitage | Milling-Machine Spindle and Tool | milling machine tools |
| 1,799,493 | Apr. 07, 1931 | J.B. Armitage | Over-Arm Clamp for Machine Tools | milling machines |
| 1,802,914 | Apr. 28, 1931 | C.W. Gruber | V Block | V blocks |
| 1,803,283 | Apr. 28, 1931 | J.W. Parker | Measuring-Machine Micrometer | |
| 1,803,284 | Apr. 28, 1931 | J.W. Parker, M.K. Parkhurst | Measuring Gauge | |
| 1,803,492 | May 05, 1931 | H.E. Townsend | Grinding Machine | surface grinders |
| 1,809,858 | Jun. 16, 1931 | H.E. Martin | Machine Tool | surface grinders |
| 1,812,444 | Jun. 30, 1931 | A. Brown, M.I. Mathewson | Grinding Machine | surface grinders |
| 1,812,649 | Jun. 30, 1931 | B.P. Graves | Adjusting Means for Overhanging Arms | |
| 1,812,871 | Jul. 07, 1931 | B.P. Graves | Variable Speed Controller Mechanism | machine tool controls |
| 1,826,953 | Oct. 13, 1931 | C.A. Rich | Screw and Similar Machine | screw machines |
| 1,835,807 | Dec. 08, 1931 | J.W. Parker | Measuring Machine | |
| 1,840,276 | Jan. 05, 1932 | M.K. Parkhurst | Micrometer Caliper | |
