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Gypban Trademarks
GYPBAN
Chemical Compositions for Removing and Preventing the Growth of Scale Deposits in Oil and Gas Wells
Cancelled
·
May 31, 1983
·
73421171
·
GYPBAN
Particulate Complex Phosphates, Especially for Sequestering Alkaline Earth Compounds in Underground Earth Formations, Such as Oil and Gas Wells
Cancelled
·
October 23, 1959
·
72083867
·
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