(510 P.2d 472) Dennis Paul Zambruk, d/b/a Dennis Paul Zambruk Associates v. Perlmutter 3rd Generation Builders, Inc., a Colorado corporation, and Perlmutter Associates, Inc., a Colorado corporation No. 72-086Colorado Court of Appeals. Decided May 22, 1973. Action to recover payments allegedly due plaintiff on several contracts for furnishing art and sales promotional material to defendants. […]