Patents Assigned to Royal Factories, Inc.
  • Grill
    Patent number: D273900
    Type: Grant
    Filed: May 28, 1982
    Date of Patent: May 15, 1984
    Assignee: Royal Factories, Inc.
    Inventors: Harvey Porter, Rubina M. Long
  • Grill
    Patent number: D273901
    Type: Grant
    Filed: June 7, 1982
    Date of Patent: May 15, 1984
    Assignee: Royal Factories, Inc.
    Inventors: Harvey Porter, Rubina M. Long
  • Grill
    Patent number: D274005
    Type: Grant
    Filed: June 10, 1982
    Date of Patent: May 29, 1984
    Assignee: Royal Factories, Inc.
    Inventors: Harvey Porter, Rubina M. Long
  • Grill
    Patent number: D274366
    Type: Grant
    Filed: June 2, 1982
    Date of Patent: June 19, 1984
    Assignee: Royal Factories, Inc.
    Inventors: Harvey Porter, Rubina M. Long
  • Grill
    Patent number: D274655
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: July 10, 1984
    Assignee: Royal Factories, Inc.
    Inventors: Harvey Porter, Rubina M. Long