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| Patents for Theo. Coleman | |||||
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| Number | Date | Patentee | Title | Type | |
| 156,669 | Nov. 10, 1874 | C.P. Housum | Instruments For Ringing Hogs | hog ring | |
| 204,736 | Jun. 11, 1878 | C.P. Housum, H.W. Hill | Device For Marking Animals | hog ring | |