Patents Assigned to The Ervan Guttman Company
  • Patent number: D264038
    Type: Grant
    Filed: May 22, 1980
    Date of Patent: April 27, 1982
    Assignee: The Ervan Guttman Company
    Inventor: Ervan E. Guttman
  • Patent number: D264169
    Type: Grant
    Filed: May 23, 1980
    Date of Patent: May 4, 1982
    Assignee: The Ervan Guttman Company
    Inventor: Ervan E. Guttman
  • Patent number: D264298
    Type: Grant
    Filed: May 23, 1980
    Date of Patent: May 11, 1982
    Assignee: The Ervan Guttman Company
    Inventor: Ervan E. Guttman