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All Patents in class 474/34
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,523,397Sep. 26, 1950G.J. Kasselmann, H.J. SiekmannChange Speed Gearing for Lathe Headstocksindustrial machine gearing
2,561,712Jul. 24, 1951H.J. Siekmann, G.J. KasselmannAdjustable pulley v-belt transmissionmetalworking machine mechanisms
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