Patent No. 1,489,190

This patent was filed on September 5, 1922, and published on April 1, 1924. The inventor is C. Bornmann, and the applicant is Ansco Photoproducts, Inc., from New York. It concerns a specific design of the front of the film support cone. In a manner similar to tenons and mortises, a protrusion fits perfectly into a rectangular notch around the back of the lens. The purpose is to provide better support for the cone, preventing any film movement and limiting the possibilities of light entering anywhere other than the dark chamber.

Patent No. 1,511,158

This patent was filed on March 24, 1924, and published on October 7, 1924. The inventor is C. Bornmann, and the applicant is Ansco Photoproducts, Inc., from New York. It pertains to a new form of film support in box-type cameras. It is designed to provide better stability for the film roll while making it easier to load and unload.

Patent No. 1,511,160

This patent was filed on April 5, 1924, and published on October 7, 1924. The inventor is C. Bornmann, and the applicant is Ansco Photoproducts, Inc., from New York. It relates to a new film winding key.

Patent No. 1,524,081

This patent was filed on September 2, 1922, and published on January 27, 1925. The inventor is C. Bornmann, and the applicant is Ansco Photoproducts, Inc., from New York. It pertains to a shutter with a damped end of travel in such a way that the shutter plate is not bounced backward, thus preventing it from uncovering the film and altering the exposure that has already been made.

Patent No. 1,530,029

This patent was filed on March 24, 1924, and published on March 17, 1925. The inventor is C. Bornmann, and the applicant is Ansco Photoproducts, Inc., from New York. It concerns a box-type camera in which the interlocking of the various components limits the entry of light. It complements Patent No. 1,489,190.

Patent No. 1,564,821

This patent was filed on October 31, 1922, and published on December 8, 1925. The inventor is C. Bornmann, and the applicant is Ansco Photoproducts, Inc., from New York. It relates to a new form of rear door.

Patent No. 1,593,68

This patent was filed on February 16, 1926, and published on July 27, 1926. The inventor is C. Bornmann, and the applicant is Ansco Photoproducts, Inc., from New York. It relates to a shutter in which the selection of the T (Time) mode automatically modifies the aperture.