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| Patents for Merwin McKaig | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 173,131 | Feb. 08, 1876 | J. Newcomer, W.J. Muncaster, M. McKaig | Gridiron | |
 | 176,541 | Apr. 25, 1876 | W.J. Muncaster, M. McKaig | Raising and Lowering Screw Propellers | |
 | 319,603 | Jun. 09, 1885 | W.J. Muncaster | Metal Bending and Straightening Machine | |
 | 334,538 | Jan. 19, 1886 | W.J. Muncaster | Lathe for Turning Shafting | |
| 409,483 | Aug. 20, 1889 | W.J. Muncaster | Pulley Chuck | ||
 | 432,144 | Jul. 15, 1890 | W.J. Muncaster | Machine for Polishing Shafting | |