Sewage treatment device

Peirish, Jr. , et al. April 22, 1

Patent Grant 3878569

U.S. patent number 3,878,569 [Application Number 05/466,134] was granted by the patent office on 1975-04-22 for sewage treatment device. This patent grant is currently assigned to International Telephone and Telegraph Corporation. Invention is credited to Alfred J. Peirish, Jr., Tim M. Uyeda.


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