Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of BE478204ApublicationCriticalpatent/BE478204A/xx
B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
B43K—IMPLEMENTS FOR WRITING OR DRAWING
B43K7/00—Ball-point pens
C—CHEMISTRY; METALLURGY
C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
C09D11/00—Inks
C09D11/16—Writing inks
C09D11/18—Writing inks specially adapted for ball-point writing instruments