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| Patents for Crosby Steam Gage & Valve Co | |||||
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| Number | Date | Patentee | Title | Type | |
| 636,907 | Nov. 14, 1899 | F. Lane | Whistle Valve | whistles | |
| 643,876 | Feb. 20, 1900 | F. Lane | Pressure Gage | vacuum and pressure gauges | |