Cinema Patents Co. v. Warner Bros. Pictures, Inc.

SWAN, Circuit Judge,

The patents in suit relate' to> machine processing of motion picture film.. Processing photographie film) involves the steps of developing, fixing,, washing, and drying. Although additional! steps, such as coloring, or hardening with almim, may be introduced, tbe present ease is concerned only with the four first mentioned. Originally each step was performed manuaffiy. The exposed but undeveloped photographic film was- cut into sections of about 200! feet in. length, and eaeb section was- woundi upon a rack or drum which. *745was submerged successively in the developing,…