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| Patents for C. S. Middleton | |||||
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| Number | Title | Classification(s) | |||
| 565,358 | Target Meter | 33/833 | |||
| D34,837 | Wrench For Stay Bolts For Boiler Sheets | D8/21 | |||
| D34,838 | Wrench For Stay Bolts For Boiler Sheets | D8/21 | |||
| 680,560 | Stay-Bolt Thimble Wrench | 81/459 | |||
| 797,489 | Wrench | 81/152, 81/354, 81/427 | |||
| 849,797 | Electric Igniter for Explosive Engines | 123/164, 123/169R | |||