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CHEMICAL DEVELOPMENTS Corp

CHEMICAL D
Active Patents
0
Total Holdings
4

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2455509A Method of extruding irregularly shaped carbon rods Expired / Lapsed 1943-12-13 1948-12-07 0 Details
US2410035A Extrusion apparatus Expired / Lapsed 1944-07-19 1946-10-29 0 Details
US2394023A Packed tower Expired / Lapsed 1944-01-05 1946-02-05 0 Details
US2344138A Coating method Expired / Lapsed 1941-01-16 1944-03-14 0 Details