| Patents for Birdsill Holly |
Patents 31 -
45
of 61
      |
| Number | Date | Patentee | Title | Type |
| 94,748 | Sep. 14, 1869 | B. Holly | Automatic Regulating Valve | water regulators |
| 94,749 | Sep. 14, 1869 | B. Holly | Hydrant | plumber |
| RE4,085 | Aug. 02, 1870 | B. Holly | Water Supply Regulator for Water Works | water regulators |
| RE4,086 | Aug. 02, 1870 | B. Holly | Water Supply Regulator | water regulators |
| RE4,087 | Aug. 02, 1870 | B. Holly | Water Supply Regulator | water regulators |
| 113,516 | Apr. 11, 1871 | B. Holly | Water Filter | water filters |
| 113,517 | Apr. 11, 1871 | B. Holly | Safety Valve | steam safety valves |
| 113,668 | Apr. 11, 1871 | B. Holly | Surface Condenser | steam condensers |
| 114,010 | Apr. 25, 1871 | B. Holly | Variable Cut Off | steam valves |
| 114,142 | Apr. 25, 1871 | B. Holly | Combined Heaters & Condensers | steam condensers |
| RE4,373 | May 09, 1871 | B. Holly | Improvement in Systems of Water-supplies for Cities | water distribution systems |
| 114,683 | May 09, 1871 | B. Holly | Pressure Regulator | water regulators |
| RE4,396 | May 23, 1871 | B. Holly | Improvement in Automatic Regulating-Valves | water regulators |
| RE5,132 | Nov. 05, 1872 | B. Holly | Improvement in Water-Supply Regulators for Water-Works | water regulators |
| RE5,133 | Nov. 05, 1872 | B. Holly | Improvement in Systems of Water-supply for Cities | water distribution systems |
