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| All Patents in class 200/19.11 | |||||
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| Number | Date | Patentee | Title | Type | |
| 14,561 | Apr. 01, 1856 | G.G. Griswold | Method of Manufacturing Augers | making drills and augers | |
| 2,433,888 | Jan. 06, 1948 | A.L. Brownlee | Distributor | ignition systems | |