| Patents for John Bertram & Sons Co., Ltd. |
Patents 1 -
10
of 13
      |
| Picture | Number | Date | Patentee | Title |
 | 131,669 | Sep. 24, 1872 | T.W. Dowling | Improvement in scroll-sawing machines |
 | 145,993 | Dec. 30, 1873 | T.W. Dowling | Improvement in scroll-sawing machines |
| | CA-3,141 | Feb. 24, 1874 | T.W. Dowling | Improvements on scroll-sawing machines |
 | CA-95,988 | Nov. 07, 1905 | C.G. Draeseke | Lathe driving mechanism |
 | CA-98,742 | Apr. 24, 1906 | W.T. Sears | Variable speed gearing |
 | CA-99,422 | Jun. 05, 1906 | W.J. Hagman | Counter balance |
 | CA-105,241 | May 14, 1907 | G.T. Reiss | Wheel press |
 | CA-105,414 | May 21, 1907 | G.T. Reiss, J.K. Cullen | Car wheel press |
 | 862,437 | Aug. 06, 1907 | H. Bertram | Lathe |
 | CA-126,241 | Jun. 14, 1910 | E.H. Wray | Forging press and hammer |
