McLAUGHLIN, District Judge.
This is an action brought by plaintiffs under Section 145, Title 35 U.S.C.A., seeking judgment that plaintiffs are entitled to receive Letters Patent on four claims of application Serial Number 755,493 filed June 18, 1947 for an article designated as a metal applique (and known by the trade name "Metal-Cal"), being a marking device made of aluminum foil, .003 of an inch thick, capable of being colored in various ways and having an adhesive...
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