Gerhard Lugert

4 Patents

• US121521582024

  Graphite Lead or Graphite Chalk or Graphite Block, Pencil with Graphite Lead, and Method for Producing a Graphite Lead or Graphite Chalk or Graphite Block

  FABER-CASTELL AG

  0 cites
• US120540012024

  Process for the Production of an Impregnated Wood Piece, Impregnated Wood Piece Obtainable by Such a Process and Pencil Having a Sheath Made of Such an Impregnated Wood Piece

  FABER-CASTELL AG

  0 cites
• US120064432024

  Core or Crayon for Writing And/or Coloring

  Faber-castell AG

  0 cites
• US115424012023

  Whitish Writing and Marking Fluid for Capillary Systems and Writing Instrument

  Faber-castell AG

  0 cites