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| All Patents in class 137/599.09 | |||||
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| Number | Date | Patentee | Title | Type | |
| 188,740 | Mar. 27, 1877 | H. Murphy, A. Kipp, Jr. | Improvement in gas-regulators | pressure regulators | |
| 392,109 | Oct. 30, 1888 | J.R. Daly | Anti-Fluctuator for Gas engines | internal combustion engine governors | |