JACKSON, Judge.
Appellants have appealed from a decision of the Board of Appeals of the United States Patent Office affirming a decision of the Primary Examiner rejecting all of the claims, 1 to 10, inclusive, of an application, serial No. 509,140, filed November 5, 1943, entitled "Textile Treatment" as lacking invention over the prior art publication, Kuhn et al., Berichte, Vol. 73 (1940), pages 1109-1113.
Six claims describe a textile impregnated with benzotriazolium...
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