| All Patents in class 409/156 |
Patents 16 -
28
of 28
      |
| Number | Date | Patentee | Title | Type |
| 1,951,146 | Mar. 13, 1934 | A.F. Bennett, B.P. Graves | Transmission Mechanism for Machine Tools | milling machines |
| 1,966,699 | Jul. 17, 1934 | J.B. Armitage | Milling Machine Transmission and Control Mechanism | milling machines |
| 1,977,311 | Oct. 16, 1934 | R.S. Condon, E.J. Kearney | Rate Change Device | milling machines |
| 2,011,068 | Aug. 13, 1935 | A.F. Bennett, I.O. Miner | Machine Tool | milling machines |
| 2,012,690 | Aug. 27, 1935 | F.A. Parsons | Transmission and Control Mechanism | milling machines |
| 2,052,648 | Sep. 01, 1936 | F.A. Parsons | Milling Machine Organization | milling machines |
| 2,077,408 | Apr. 20, 1937 | A.F. Bennett, B.P. Graves | Machine Tool | metalworking machine mechanisms |
| 2,085,272 | Jun. 29, 1937 | W. Pohl | Transmission and Control Mechanism | machine tool controls |
| 2,169,484 | Aug. 15, 1939 | J.B. Armitage | Machine Tool Transmission and Control Mechanism | milling machines |
| 2,308,647 | Jan. 19, 1943 | F.W. Curtis | Hydraulic Machine Tool | milling machines |
| 2,344,529 | Mar. 21, 1944 | J.B. Armitage | Machine Tool Transmission and Control Mechanism | milling machines |
| 2,843,024 | Jul. 15, 1958 | G.G. Baumbach, F. Zankl, T.A. Wetzel, J.B. Armitage | Dual Transmission and Control Mechanism | milling machines |
| 4,261,675 | Apr. 14, 1981 | F. Zankl | Machine tool with pulsating cutting force | |
