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BEAUMONT BIRCH CO

BEAUMONT B
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2804170A Automatic continuous discharge air lock for cyclone separat… Expired / Lapsed 1954-02-03 1957-08-27 0 Details
US2635734A Continuous flow flight conveyer Expired / Lapsed 1951-03-23 1953-04-21 0 Details