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| Patents for Guild & Garrison | |||||
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| Picture | Number | Date | Patentee | Title | |
| RE9,857 | Sep. 06, 1881 | W.H. Guild, Jr. | Valve Action of Duplex Engines and Pumps | ||
| 276,805 | May 01, 1883 | W.H. Guild | Pump Valve | ||
| 278,133 | May 22, 1883 | W.H. Guild | Duplex Direct Acting Engine | ||