Patents Assigned to PureMark USA, Inc.
  • Filter adapter head
    Patent number: D356625
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: March 21, 1995
    Assignees: Hydro Systems International, PureMark USA, Inc., W. F. srl
    Inventors: Raymond M. Petrucci, Harry T. Cheatwood