| Patents for Charles W. Parker |
Patents 1 -
6
of 6
      |
| 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 |
| 742,549 | Oct. 27, 1903 | W.D. Forsyth, E. Zeh | Metal column, girder, or structure | structures |
| 784,244 | Mar. 07, 1905 | E. Zeh | Machine for screw-threading sheet-metal pipes | sheet metal |
| 785,787 | Mar. 28, 1905 | E. Zeh | Corrugated-pipe-bending machine | sheet metal |
| 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 | |
