Patent for a new and improved trace-carrier. This design consists in "the combination of a cylindrical body of elongated form and obliquely arranged and having slots in the upper part thereof to form bars, a central top slot between said bars, and a lower bar having a recess therein, an obliquely-inclined spring-latch extending across one of the open ends of said body, the back-band having a strap to pass around said body, and a girth-strap connected to said lower recessed bar" (lines 13-22).

Patent for a film developing, fixing, and washing apparatus with an improved method of rolling the film around the coil in the washing tank.