Patents by Inventor Etsuo Mansho

Etsuo Mansho 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).

  • Camera accessory
    Patent number: 4133607
    Abstract: A periscope unit is removably affixed to a camera with the eye piece of the camera in alignment with the top light opening of the periscope whereby a photographer looking into an eye piece at the bottom of the periscope sees through the eye piece of the camera positioned above the photographer.
    Type: Grant
    Filed: November 11, 1977
    Date of Patent: January 9, 1979
    Inventor: Etsuo Mansho