Patents Assigned to RB Toy Development Company
  • Pantograph package
    Patent number: D252447
    Type: Grant
    Filed: April 25, 1977
    Date of Patent: July 24, 1979
    Assignee: RB Toy Development Company
    Inventors: Sam Kupperman, Dennis Kupperman
  • Pantograph package
    Patent number: D252448
    Type: Grant
    Filed: April 25, 1977
    Date of Patent: July 24, 1979
    Assignee: RB Toy Development Company
    Inventors: Sam Kupperman, Dennis Kupperman