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Manufacturers Index - Medad Wright & Sons
Patents
This page contains information on patents issued to this manufacturer.

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USPTO = U.S. Patent Office . Images of the actual patent can be viewed on the U.S. Patent Office web site but a special TIFF viewer must be installed with your browser in order properly work. More information on how to configure your computer to view these patents can be found at TIFF image Viewers for Patent Images.
DATAMP = Directory of American Tool And Machinery Patents . A sister site to VintageMachinery.org with information on patents related to machinery and tools. A much easier user interface than the USPTO's for finding information on machinery patents.

Patent Number Date Title Name City Description
128,995 Jul. 16, 1872 Improvement in planing-machines Medad Wright Montpelier, VT
203,234 Apr. 30, 1878 Improvement in stone and glass polishers Medad Wright Montpelier, VT
    Improvement in stone and glass polishers Prentiss C. Wright Montpelier, VT  
1,105,088 Jul. 28, 1914 Polishing-wheel Daniel Frederick McGovern Montpelier, VT Both assignees were deceased.
"The polishing-wheel provided by this invention is designed particularly for use with emery or other abrasive in smoothing and polishing granite, marble, or other stone..."
1,105,089 Jul. 28, 1914 Polishing-wheel Daniel Fredrick McGovern Montpelier, VT Both assignees were deceased. The inventor's middle name is consistently spelled "Fredrick" on this patent but "Frederick" on patent 1,105,089.
"The invention relates to polishing or smoothing wheels that employ spiral flanges or scrolls to affect the action of the abrasive or smoothing material used, and it improves the arrangement of flanges or scrolls such as shown, for example, in my Patent No. 861,476 and that of Pentbroke No. 900,947."