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| All Patents in class 318/371 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 273,208 | Feb. 27, 1883 | S.S. Wheeler | Electric Elevatror | ||
| 2,405,686 | Aug. 13, 1946 | R.H. Clark | Machine Tool | ||
 | 3,038,109 | Jun. 05, 1962 | J.R. Mowery, Jr., C.B. Zimmerman | Braking systems for electrical motors | |
| 3,798,427 | Mar. 19, 1974 | J.P. Connors | Automatic Deceleration to Zero Velocity in Iteratively Computing Numerical Control Systems | ||