| Patents for R. S. C. Caldwell |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 930,421 | Aug. 10, 1909 | W.S. Sherman | End matcher | matchers |
| 953,863 | Apr. 05, 1910 | D.E. Shaw | Combination Attachment for Tools | bevels |
| 996,183 | Jun. 27, 1911 | T.S. Wilkin, J.B. Carpenter | Gang Saw Base | reciprocating sawmills |
| 996,184 | Jun. 27, 1911 | T.S. Wilkin, J.B. Carpenter | Gang Saw Operating Mechanism | reciprocating sawmills |
| 1,088,284 | Feb. 24, 1914 | H.H. Jones | Hacksaw-machine | metal sawing machines |
| 1,091,772 | Mar. 31, 1914 | W.S. Sherman | End-matcher | matchers |
| 1,091,773 | Mar. 31, 1914 | W.S. Sherman | End-matcher | matchers |
| 1,102,695 | Jul. 07, 1914 | W.S. Sherman | Boring-machine | wood drilling and boring |
| 1,131,260 | Mar. 09, 1915 | A. Nydegger | Plaster-mixer | plasterer |
| 1,153,618 | Sep. 14, 1915 | J. Goetz | Arm for milling-machines | milling machines |
| 1,271,233 | Jul. 02, 1918 | W.S. Sherman | Saw Mounting | circular saws |
| 1,279,286 | Sep. 17, 1918 | F.M. Davis | Duplex Milling Machine | milling machines |
| 1,287,148 | Dec. 10, 1918 | P. Waldner | Hand Shaft Planer | metal planers |
| 1,376,861 | May 03, 1921 | F.M. Davis | Universal duplex milling-machine | milling machines |
