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| Patents for John W. Crawford | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,597,058 | Aug. 24, 1926 | J.W. Crawford | Hook Rule | rule attachments | |
| 2,836,426 | May 27, 1958 | J.W. Crawford | Tool Holder | metalworking machine tool holders | |