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J-M MANUFACTURING Co COMPANY Inc A CORP OF

J-M MANUFA
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3873391A Method of fabricating a plastic pipe fitting Expired / Lapsed 1972-07-19 1975-03-25 19 Details
US3793427A Method of forming the bell end of a bell and spigot joint Expired / Lapsed 1972-04-03 1974-02-19 0 Details