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-
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3190726
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Patent number 3,190,726
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Issue date Jun 22, 1965
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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2438327
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Patent number 2,438,327
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Issue date Mar 23, 1948
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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2300633
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Patent number 2,300,633
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Issue date Nov 3, 1942
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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1792757
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Patent number 1,792,757
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Issue date Feb 17, 1931
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G05 - CONTROLLING REGULATING
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1587628
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Patent number 1,587,628
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Issue date Jun 8, 1926
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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1536056
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Patent number 1,536,056
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Issue date May 5, 1925
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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1536058
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Patent number 1,536,058
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Issue date May 5, 1925
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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1536060
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Patent number 1,536,060
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Issue date May 5, 1925
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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1536054
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Patent number 1,536,054
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Issue date May 5, 1925
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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1536061
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Patent number 1,536,061
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Issue date May 5, 1925
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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1536059
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Patent number 1,536,059
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Issue date May 5, 1925
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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1536062
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Patent number 1,536,062
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Issue date May 5, 1925
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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1536057
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Patent number 1,536,057
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Issue date May 5, 1925
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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1536063
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Patent number 1,536,063
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Issue date May 5, 1925
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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1527461
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Patent number 1,527,461
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Issue date Feb 24, 1925
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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1296150
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Patent number 1,296,150
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Issue date Mar 4, 1919
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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1272053
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Patent number 1,272,053
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Issue date Jul 9, 1918
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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1243737
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Patent number 1,243,737
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Issue date Oct 23, 1917
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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1225977
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Patent number 1,225,977
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Issue date May 15, 1917
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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1220429
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Patent number 1,220,429
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Issue date Mar 27, 1917
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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1218002
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Patent number 1,218,002
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Issue date Mar 6, 1917
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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1187830
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Patent number 1,187,830
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Issue date Jun 20, 1916
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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1176368
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Patent number 1,176,368
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Issue date Mar 21, 1916
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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1007176
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Patent number 1,007,176
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Issue date Oct 31, 1911
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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966071
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Patent number 966,071
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Issue date Aug 2, 1910
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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926842
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Patent number 926,842
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Issue date Jul 6, 1909
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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926843
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Patent number 926,843
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Issue date Jul 6, 1909
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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912803
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Patent number 912,803
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Issue date Feb 16, 1909
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE