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COLUMBIA PHONOGRAPH CO Inc

COLUMBIA P

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2027519A	Cold light source	Expired / Lapsed	1932-09-24	1936-01-14	0	Details
US1958587A	Carrying handle for portable gramophones or the like	Expired / Lapsed	1930-01-28	1934-05-15	0	Details
US1569002A	Means and method for pressing molded articles	Expired / Lapsed	1924-07-05	1926-01-12	0	Details
US1537697A	Apparatus for molding articles	Expired / Lapsed	1919-07-09	1925-05-12	0	Details