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| Patents for Marschke Mfg. Co. | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,372,033 | Mar. 22, 1921 | W.A. Marschke, F.W. Marschke | Grinder-hood | |
 | 1,403,179 | Jan. 10, 1922 | W.A. Marschke, F.W. Marschke | Stator | |
 | 1,784,133 | Dec. 09, 1930 | A.G. Decker | Electric drive for grinder wheels | |
 | 1,800,307 | Apr. 14, 1931 | W.A. Marschke, F.W. Marschke | Swing grinder | |
 | 1,828,540 | Oct. 20, 1931 | W.A. Marschke | Buffer or grinder | |
 | 1,911,857 | May 30, 1933 | W. Stumpf | Grinder speed control | |