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ANTHRACITE SEPARATOR CO

ANTHRACITE
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US1825157A Method and apparatus for hydraulically separating materials Expired / Lapsed 1926-12-03 1931-09-29 0 Details
US1708029A Spiral lowering chute and method of manufacture Expired / Lapsed 1925-02-21 1929-04-09 0 Details