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Bermad LP
Bermad LP
Active Patents
0
Total Holdings
2
Patent Holdings
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Patent No.
Title
Status
Filing Date
Grant Date
Claims
Actions
US4662598A
Sleeve valve with integral control chamber
Expired / Lapsed
1984-12-31
1987-05-05
6
Details
US4496132A
Sleeve valve with integral control chamber
Expired / Lapsed
1982-12-02
1985-01-29
6
Details