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CHAMBERS BROTHERS CO

CHAMBERS B
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US1478842A Method and means for working clay Expired / Lapsed 1922-05-23 1923-12-25 0 Details
US721152A Lubricating device for brick-machines. Expired / Lapsed 1897-05-01 1903-02-24 0 Details