FR944538A - Procédé pour dessiner simultanément deux images stéréoscopiques d'un objet et appareil pour la mise en oeuvre de ce procédé
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Procédé pour dessiner simultanément deux images stéréoscopiques d'un objet et appareil pour la mise en oeuvre de ce procédé
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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
B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
B43L13/14—Devices for drawing in perspective
FR944538D1947-03-191947-03-19Procédé pour dessiner simultanément deux images stéréoscopiques d'un objet et appareil pour la mise en oeuvre de ce procédé
ExpiredFR944538A
(fr)