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| All Patents in class 409/101 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,959,178 | May 15, 1934 | B. Sassen | Tracer Control Mechanism | ||
| 2,111,332 | Mar. 15, 1938 | E.G. Roehm | Multiple Automatic Pattern Controlled Milling Machine | ||
| 2,235,092 | Mar. 18, 1941 | E.L. Wall | Duplicating Machine | ||
| 2,473,741 | Jun. 21, 1949 | H. Horlacher, W. Wilder | Pattern Controlled Milling Machine | ||
| 2,493,827 | Jan. 10, 1950 | F.A. Parsons | Transmission and Control Mechanism for Machine Tools | ||
| 2,788,718 | Apr. 16, 1957 | M.E. Martellotti | Contouring Machine | ||