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| All Patents in class 137/533.13 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,044,623 | Nov. 19, 1912 | C.L. Bailey | Valve | water valves | |
| 1,173,536 | Feb. 29, 1916 | A.P. Phillips | Check Valve | industrial valves | |