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| Patents for David A. Decrow | |||||
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| Picture | Number | Date | Patentee | Title | |
| 526,484 | Sep. 25, 1894 | D.A. Decrow | Valve Mechanism | ||
| 584,760 | Jun. 15, 1897 | D.A. Decrow | Pumping engine | ||
 | 620,644 | Mar. 07, 1899 | D.A. Decrow | Pumping engine | |
| 715,559 | Dec. 09, 1902 | D.A. Decrow | Motor Engine | ||