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KELLER TOOL CO
KELLER TOO
Active Patents
0
Total Holdings
5
Patent Holdings
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Patent No.
Title
Status
Filing Date
Grant Date
Claims
Actions
US2543942A
Power-operated nail driver
Expired / Lapsed
1947-11-08
1951-03-06
0
Details
US2464997A
Lubrication of rotary expansible chamber sliding vane tool …
Expired / Lapsed
1944-01-08
1949-03-22
0
Details
US2402212A
Operation controlling means for pressure fluid actuated too…
Expired / Lapsed
1942-08-12
1946-06-18
0
Details
US2344740A
Hose coupling device
Expired / Lapsed
1942-08-01
1944-03-21
0
Details
US646702A
Rotary motor.
Expired / Lapsed
1899-08-26
1900-04-03
0
Details