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Patents for Aloha Vivarttas | |||||
Number | Date | Patentee | Title | Type | |
185,301 | Dec. 12, 1876 | A. Vivarttas, A. Crosby | Propelling and steering vessels | boats and ships | |
274,860 | Mar. 27, 1883 | A. Vivarttas | Tool for Cutting the Teeth of Metal Gear Wheels | gear cutting tools | |
447,163 | Feb. 24, 1891 | J. Ryan | Screw Wrench | screw adjust wrenches |