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| Patents for James Armstrong | |||||
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| Number | Title | Classification(s) | |||
| 4,963 | Water Wheel | 416/189 | |||
| 79,540 | Rotary Harrow | 172/349, 172/547 | |||
| 525,613 | Stave-cutting machine | 142/53, 144/211 | |||
| 535,440 | Tool Holder | 407/110, 407/83, 407/9 | |||
| 636,741 | Tool-holder | 407/112, 407/117, 623/36 | |||
| 675,184 | Tool Holder | 142/56, 407/80, 407/82, 407/83, 407/92 | |||
| 960,769 | Nurling Tool | 72/199, 72/703 | |||
| 1,214,497 | Tool Holder | 279/76, 407/107, 407/92 | |||
| 1,214,498 | Tool Holder | 279/77, 407/108, 407/93, 407/94 | |||