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| All Patents in class 74/89.39 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,076,932 | Oct. 28, 1913 | E.W. Zeh | Power-press | ||
| 2,066,073 | Dec. 29, 1936 | A.E. Robinson | Safety Device for Elevating or Translating Mechanism | ||
 | 3,103,827 | Sep. 17, 1963 | N.R. Logan | Dual Operator for Slides | |
| 3,187,601 | Jun. 08, 1965 | A.C. Glenn | Motion Transmitting Mechanism | ||