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Enviri Corp

Enviri Cor
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3899265A Method and apparatus to perforate pipe Expired / Lapsed 1973-12-27 1975-08-12 10 Details
US3741390A Tertiary filter Expired / Lapsed 1971-12-13 1973-06-26 12 Details