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| All Patents in class 279/2.05 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,280,620 | Apr. 21, 1942 | F.J. Theler, G.W. Binns | Apparatus for Finishing Tubular Articles | grinding machines | |
| 2,413,068 | Dec. 24, 1946 | R.S. Pyne | Diaphragm chuck | cylindrical grinders | |
| 2,538,289 | Jan. 16, 1951 | M.H. Arms | Diaphragm chuck | grinders | |