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| Patents for John B. Howe | |||||
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| Number | Date | Patentee | Title | Type | |
| 480,098 | Aug. 02, 1892 | J.B. Howe | Machine for Pouncing Hats | hat making machines | |
| 558,810 | Apr. 21, 1896 | J.B. Howe | Hat Finishing Lathe | hat making machines | |