| Patents for Crosby Steam Gage & Valve Co. |
Patents 1 -
10
of 77
      |
| Picture | Number | Date | Patentee | Title |
 | 145,726 | Dec. 23, 1873 | G.H. Crosby | Improvement in pressure-gages |
 | 186,718 | Jan. 30, 1877 | J. Einig | Improvement in steam-whistle |
 | 295,093 | Mar. 11, 1884 | C.E. Ashcroft | Pressure-gage-testing apparatus |
 | 476,512 | Jun. 07, 1892 | C.B. Bosworth | Device for testing pressure-gauges |
| | 530,433 | Dec. 04, 1894 | F. Lane | Indicator for Steam Engines |
 | 549,700 | Nov. 12, 1895 | J.H. Millett, C.B. Bosworth | Steam-gage |
 | 603,391 | May 03, 1898 | F.L. Wolfe | Pressure-recorder |
| | 631,370 | Aug. 22, 1899 | J. Hughes | Safety Valve and Muffler |
| | 641,302 | Jan. 16, 1900 | F. Lane | Illuminated Gage |
| | 659,234 | Oct. 09, 1900 | J. Hughes | Blow Off Valve |
