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DORN ELECTRIC TOOL Co VAN
DORN ELECT
Active Patents
0
Total Holdings
2
Patent Holdings
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Patent No.
Title
Status
Filing Date
Grant Date
Claims
Actions
US1692487A
Motor-driven threading tool
Expired / Lapsed
1925-08-10
1928-11-20
0
Details
US1679185A
Screw driver
Expired / Lapsed
1925-07-03
1928-07-31
0
Details