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HPM Corp

HPM Corp
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US4256689A Injection moulding method and apparatus with mould runner r… Expired / Lapsed 1978-07-06 1981-03-17 4 Details
US4125585A Process employing coextrusion feedblock Expired / Lapsed 1976-12-17 1978-11-14 13 Details