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Pacific Flush Tank Co

Pacific Fl
Active Patents
0
Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2768137A Method of and apparatus for digesting sludge Expired / Lapsed 1953-11-19 1956-10-23 2 Details
US2635813A Furnace and control system for gaseous and liquid fuel burn… Expired / Lapsed 1948-11-03 1953-04-21 0 Details
US1912595A Sludge digestion tank Expired / Lapsed 1930-08-29 1933-06-06 0 Details