Patents Assigned to Kuva-Sampo Oy
  • Film viewer
    Patent number: D319454
    Type: Grant
    Filed: February 18, 1988
    Date of Patent: August 27, 1991
    Assignee: Kuva-Sampo Oy
    Inventor: Maila P. Silvennoinen
  • Combined film holder and viewer
    Patent number: D319649
    Type: Grant
    Filed: February 18, 1988
    Date of Patent: September 3, 1991
    Assignee: Kuva-Sampo Oy
    Inventor: Maila P. Silvennoinen