Patents Assigned to BLK, Inc.
  • Toy fetal life sounds monitor
    Patent number: D345183
    Type: Grant
    Filed: August 11, 1992
    Date of Patent: March 15, 1994
    Assignee: BLK, Inc.
    Inventors: Gregory J. Emmel, Micheal E. Henley, Clive L. Smith, Michael J. Vaught