Gregory J. Halpern

Person

  • Vernon Hills, IL, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Dental anesthesia apparatus

    • Patent number 4,676,257
    • Issue date Jun 30, 1987
    • Pain Prevention, Inc.
    • Gregory J. Halpern
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents