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| Patents for I. H. Babcock | |||||
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| Number | Date | Patentee | Title | Type | |
| 193,085 | Jul. 17, 1877 | B. Holly | Steam Generator | stationary boilers | |
| 193,086 | Jul. 17, 1877 | B. Holly | Steam Apparatus | steam heating | |
| 193,087 | Jul. 17, 1877 | B. Holly | Meter Valves | steam heating | |
| 193,088 | Jul. 17, 1877 | B. Holly | Improvement in Street Mains or Pipes for Supplying Large Districts with Heat for Warming Buildings | steam apparatus | |
| 260,097 | Jun. 27, 1882 | B. Holly | Apparatus for Supplying Steam | steam heating | |