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American Pipe and Construction Co

American P
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2440725A Method of making composite plastic lined metal pipe Expired / Lapsed 1944-09-04 1948-05-04 0 Details
US2417881A Method of making plastic-metal pipe Expired / Lapsed 1943-12-13 1947-03-25 0 Details