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McDonnell and Miller Inc

McDonnell
Active Patents
0
Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2952753A Flow switch Expired / Lapsed 1958-06-27 1960-09-13 0 Details
US2671834A Level controlled switch mechanism Expired / Lapsed 1952-01-23 1954-03-09 0 Details
US2454185A Snap switch Expired / Lapsed 1945-07-20 1948-11-16 0 Details