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| All Patents in class 188/187 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,190,946 | Jul. 11, 1916 | J.L. Osborne | Governor | |
 | 1,234,334 | Jul. 24, 1917 | I.E. Hindman | Brake mechanism for lifting-jacks | |
| 1,251,494 | Jan. 01, 1918 | W.F. Folmer | Panoramic Camera | ||
| 1,567,101 | Dec. 29, 1925 | C.L. Bailey | Centrifugal Governor for Gasoline Engines | ||
| 2,500,562 | Mar. 14, 1950 | L. Oliver | Centrifugally Operated Mechanism | ||
 | 3,038,109 | Jun. 05, 1962 | J.R. Mowery, Jr., C.B. Zimmerman | Braking systems for electrical motors | |