FR1077876A - Perfectionnements apportés aux instruments de dessin, notamment aux règles graduées, équerres, rapporteurs, hachurateurs, titreurs
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Perfectionnements apportés aux instruments de dessin, notamment aux règles graduées, équerres, rapporteurs, hachurateurs, titreurs
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B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
B43L7/00—Straightedges
B43L7/027—Plural non-adjustable straightedges fixed at right angles
FR1077876D1953-05-281953-05-28Perfectionnements apportés aux instruments de dessin, notamment aux règles graduées, équerres, rapporteurs, hachurateurs, titreurs
ExpiredFR1077876A
(fr)