TREA

J. S. STAEDTLER GMBH & COMPANY

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  • ALEXANDRIA, VA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for the preparation of pencil lead
    • Patent number 5,075,054
    • Issue date Dec 24, 1991
    • J. S. Staedtler GmbH & Co.
    • Werner Handl
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Cap for writing implement with air vent
    • Patent number 5,054,949
    • Issue date Oct 8, 1991
    • J. S. Staedtler GmbH & Co.
    • Friedrich Heger
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing point or tracing element
    • Patent number 4,938,620
    • Issue date Jul 3, 1990
    • J. S. Staedtler GmbH & Co.
    • Peter Weiss
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES