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Patents for Max Bartholdy
Patents 1 - 3 of 3
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PictureNumberDatePatenteeTitle
1,404,425Jan. 24, 1922M. BartholdySurface Gauge
1,429,556Sep. 19, 1922M. BartholdyInside Gauge
1,465,295Aug. 21, 1923M. BartholdyCaliper Gauge
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