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Hydropress Inc

Hydropress

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2716421A	Valve seat retaining and removal means	Expired / Lapsed	1950-12-01	1955-08-30	0	Details
US2687052A	Apparatus for controlling the rolling of tapered sheets	Expired / Lapsed	1951-09-18	1954-08-24	0	Details
US2537182A	Injection molding machine	Expired / Lapsed	1946-09-23	1951-01-09	0	Details
US2461630A	Plastic material extrusion head	Expired / Lapsed	1945-08-08	1949-02-15	0	Details