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| Patents for Charles W. Parker | |||||
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| Number | Date | Patentee | Title | Type | |
| 224,156 | Feb. 03, 1880 | J.S. Deuse, A.H. Deuse | Die for forming Double-Twist Gimlets | making drills and augers | |
| 808,897 | Jan. 02, 1906 | W.H. Carrier | Apparatus for treating air | ||
| 1,085,971 | Feb. 03, 1914 | W.H. Carrier | Method of humidifying air and controlling the humidity and temperature thereof | ||