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| All Patents in class 74/89.18 | |||||
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| Number | Date | Patentee | Title | Type | |
| 834,198 | Oct. 23, 1906 | T.J. Fegley | Ice-cream freezer | ||
| 949,057 | Feb. 15, 1910 | H.W. Brown, G.H. Brown | Valve Reseating Device | valve grinding tools | |
| 1,135,677 | Apr. 13, 1915 | J. Fekete | Valve Grinder | valve grinding tools | |