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  5. 66 F.Supp. 929 (1946)
 

OLD TOWN RIBBON & CARBON CO. v. COLUMBIA R. & C. CO.

Civil Action No. 3653.

66 F.Supp. 929 (1946)

OLD TOWN RIBBON & CARBON CO., Inc., v. COLUMBIA RIBBON & CARBON MFG. CO., Inc., et al.

District Court, E. D. New York.

July 16, 1946.

Attorney(s) appearing for the Case

Levisohn, Niner & Levisohn, of New York City (Edwin Levisohn and Harry Cohen, both of New York City, of counsel), for plaintiff.

Darby & Darby, of New York City (Samuel E. Darby, Jr., and Floyd H. Crews, both of New York City, of counsel), for defendants.

BYERS, District Judge.

The plaintiff seeks a declaratory judgment that defendants' patent No. 2,118,888, entitled "Master Copy Sheet", is invalid. That is the one real issue, since infringement as to claim 10 is not contested, and as to claim 11 the argument is not of impressive dimensions. No other claims are in suit.

The patent is addressed to the practice of making reproductions of written or typed matter through the use of hectograph ink which is contained...

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