Patents Assigned to Sigarettenfabriek Ed. Laurens B.V.
  • Cigarette filter and filter cigarette
    Patent number: 4291712
    Abstract: A filter to be mounted to a cigarette and provided with one or more axial channels made by means of a laser beam, as well as a cigarette provided with such a filter.
    Type: Grant
    Filed: November 9, 1978
    Date of Patent: September 29, 1981
    Assignee: Sigarettenfabriek Ed. Laurens B.V.
    Inventors: Hendrikus J. Koster, Johannes T. J. Bik, Johannes G. Clardey, Dirk Smorenberg