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| Patents Granted on 1916-03-21 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,175,950 | Mar. 21, 1916 | M.I. Ginsburg | Wrench | screw adjust wrenches | |
| 1,176,019 | Mar. 21, 1916 | J.G. Baker | Bench Vice | bench vises | |
| 1,176,141 | Mar. 21, 1916 | C.L. Heisler | Erasing Pencil | writing instruments | |
| 1,176,370 | Mar. 21, 1916 | P. Kruse | Machine for beading and flanging can-bodies | can making machines | |
| 1,176,417 | Mar. 21, 1916 | R. Wood | Counter Pressure Valve | steam engine valves | |
| 1,176,567 | Mar. 21, 1916 | W.H. Kamowske | Micrometer Attachment | micrometer attachments | |