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HESSISCHE CELLULOID U HOLZWARE
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HESSISCHE CELLULOID U HOLZWARE
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Application filed by HESSISCHE CELLULOID U HOLZWAREfiledCriticalHESSISCHE CELLULOID U HOLZWARE
Application grantedgrantedCritical
Publication of FR811564ApublicationCriticalpatent/FR811564A/fr
B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
B43K—IMPLEMENTS FOR WRITING OR DRAWING
B43K5/00—Pens with ink reservoirs in holders, e.g. fountain-pens
B43K5/02—Ink reservoirs
B43K5/12—Ink reservoirs with ink-level inspection means
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR811564D1936-10-021936-10-02Corps tubulaire, notamment pour porte-plumes réservoir comportant un récipient transparent pour l'encre
ExpiredFR811564A
(fr)