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| All Patents in class 56/392 | |||||
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| Number | Date | Patentee | Title | Type | |
| 169,328 | Nov. 02, 1875 | W. Aldrich | Improvement in horse hay-rakes | hay or straw rakes | |
| 187,876 | Feb. 27, 1877 | C.G. Allen, C.M. Lufkin | Improvement in horse hay-rakes | hay or straw rakes | |
| 225,602 | Mar. 16, 1880 | H.C. Herchelrode | Horse-rake | hay or straw rakes | |
| 343,692 | Jun. 15, 1886 | J.T. Gardner, F. Bentel | Horse hay-rake | ||