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| Patents for C. S. Middleton | |||||
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| Number | Date | Patentee | Title | Type | |
| 565,358 | Aug. 04, 1896 | R.F. Langer | Target Meter | special purpose gauges | |
| D34,837 | Jul. 23, 1901 | J.B. Barnes | Wrench For Stay Bolts For Boiler Sheets | wrenches | |
| D34,838 | Jul. 23, 1901 | J.B. Barnes | Wrench For Stay Bolts For Boiler Sheets | wrenches | |
| 680,560 | Aug. 13, 1901 | J.B. Barnes | Stay-Bolt Thimble Wrench | wrenches | |
| 797,489 | Aug. 15, 1905 | E.L. Bellman | Wrench | self-adjust wrenches | |
| 849,797 | Apr. 09, 1907 | E.P. Lamb | Electric Igniter for Explosive Engines | ignition systems | |