| Patents for John M. Ritter |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 538,119 | Apr. 23, 1895 | J.B. Olney | Billiard Cue Cutter | |
| 556,237 | Mar. 10, 1896 | I.F. Allman | Vapor Engine | |
| 631,249 | Aug. 15, 1899 | W.F. Folmer | Magazine Plate Holder | film and plate holders |
| 760,245 | May 17, 1904 | H. Plante | Combined Butt Gage and Bead Plane | butt gauges |
| 762,035 | Jun. 07, 1904 | W.F. Folmer | Magazine Film Holder | film and plate holders |
| 821,426 | May 22, 1906 | J.J. Meyer | Adjustable Clamp for Pipes | pipe clamps |
| 867,081 | Sep. 24, 1907 | J.J. Robinson | Gage | circular saw accessories |
