Markus Fronhöfer

Person

  • Karlsruhe, DE

Patents Grantslast 30 patents

  • Information Patent Grant

    Accordion filter with a protective mask

    • Patent number 6,299,660
    • Issue date Oct 9, 2001
    • Firma Carl Freudenberg
    • Peter Pfeuffer
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL