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| Patents for Delbert L. Farmer | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,639,561 | Aug. 16, 1927 | J.M. Hargrave, D.L. Farmer | Clamp | bar and pipe clamps | |
| 2,168,257 | Aug. 01, 1939 | D.L. Farmer | Clamp | bar and pipe clamps | |