| Patents for Orrin William Barker |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| CA-429,165 | Jul. 31, 1945 | F.D. Boehmer, K.A. Riedel, O.W. Barker, J.B. Armitage | Machine tool | horizontal boring mills |
| CA-435,500 | Jun. 25, 1946 | J.B. Armitage, O.W. Barker | Machine tool | milling machines |
| CA-437,644 | Oct. 29, 1946 | J.B. Armitage, O.W. Barker | Machine-tool transmission and control | milling machines |
| CA-513,572 | Jun. 07, 1955 | J.B. Armitage, O.W. Barker | Milling and boring machines | milling machines |
| CA-586,714 | Nov. 10, 1959 | O.W. Barker, R.E. Saving, L.D. Libby | Rotary head milling attachment | milling machine accessories |
| CA-614,491 | Feb. 14, 1961 | J.G. Osburn, O.W. Barker | Backlash eliminator | metalworking machine mechanisms |
| CA-634,743 | Jan. 16, 1962 | O.W. Barker, J.L. Martin, F. Zankl, J.G. Osburn | Transmission and control mechanism | milling machines |
