| All Patents in class 82/900 |
Patents 1 -
10
of 40
      |
| Picture | Number | Date | Patentee | Title |
 | 233,488 | Oct. 19, 1880 | S. Darling | Art of Manufacturing Mathematical Instruments |
| | 354,498 | Dec. 14, 1886 | P. Van Den Kerchove | Device for Cooling Machine Tools |
 | 422,663 | Mar. 04, 1890 | C.H. Trask | Milling-machine |
 | 1,324,567 | Dec. 09, 1919 | D.B. Salstrom | Wood-carving machine |
| | 1,710,913 | Apr. 30, 1929 | J.B. Armitage | Machine Tool Organization |
| | 1,718,562 | Jun. 25, 1929 | J.B. Armitage, E.J. Kearney | Machine Tool Organization |
| | 1,782,235 | Nov. 18, 1930 | J.B. Armitage, E.J. Kearney | Machine Tool Organization |
| | 1,909,564 | May 16, 1933 | J.B. Armitage | Machine Tool Organization |
| | 1,978,060 | Oct. 23, 1934 | A.A. Rickert | Work Feeding Device |
| | 2,026,247 | Dec. 31, 1935 | F.A. Parsons | Machine Tool Transmission and Control |
