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| Patents for McKaig-Hatch Inc. | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-248,365 | Mar. 31, 1925 | H.J. Friedl | Pinces A Chaine | pliers | |
| 1,698,474 | Jan. 08, 1929 | H.J. Friedl | Chain Pliers | chain | |
| 1,972,051 | Aug. 28, 1934 | K.F. Kempf | Upsetting Machine | upsetting machines | |