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| Patents for William A. Warman | |||||
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| Number | Date | Patentee | Title | Type | |
| 679,927 | Aug. 06, 1901 | W.A. Warman | Method of Making Screws | ||
| 846,728 | Mar. 12, 1907 | R.B. Cochrane, W.A. Warman | Shaping Machine | metal shapers | |