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| Patents for A. G. Heylman | |||||
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| Number | Date | Patentee | Title | Type | |
| 186,925 | Feb. 06, 1877 | W. Dicks | Improvements in Adjustable-Grasp Wrenches | quick adjust wrenches | |
| 252,248 | Jan. 10, 1882 | A.A. Pease | Adjustable Tool | pliers | |
| 610,553 | Sep. 13, 1898 | W.R. Moore | Wrench | axle nut wrench combination tools | |