Patents by Inventor Rudolf Hamer

Rudolf Hamer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and device for making photographic copies
    Patent number: 4417811
    Abstract: A method of making photographic copies during a first order and filing the same for a reorder includes making a positive strip copy of pictures with data relevant to an undeveloped film strip, the negative film is connected to the positive strip copy and provided with a punched code of the processing program and, upon development, the negative is connected to an auxiliary strip of a store cartridge to form a single file unit.
    Type: Grant
    Filed: June 2, 1981
    Date of Patent: November 29, 1983
    Inventor: Rudolf Hamer