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Publication of FR830972ApublicationCriticalpatent/FR830972A/fr
F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
F41H5/00—Armour; Armour plates
F41H5/26—Peepholes; Windows; Loopholes
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FR830972D1937-12-201937-12-20Dispositifs pour augmenter la vision des fenêtres de visée des chars d'assaut et la sécurité des observateurs
ExpiredFR830972A
(fr)