Patents Assigned to Bonum-Werk Inhaber Friedrich Hetzmannseder
  • Preservative for film
    Patent number: 4201296
    Abstract: A tablet containing compacted camphor powder is sealed in a capsule.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: May 6, 1980
    Assignee: Bonum-Werk Inhaber Friedrich Hetzmannseder
    Inventor: Heinrich Hrabik