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Halkey Roberts Corp

Halkey Rob
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US4617015A Visual pressure indicator for endotracheal cuff Expired / Lapsed 1984-08-10 1986-10-14 7 Details
US3192949A Spring biased check valve Expired / Lapsed 1962-07-10 1965-07-06 2 Details