Document Type and Number:
Japanese Patent JPS6335043
Kind Code:
B2
Abstract:
A card key switch including a card key obtained by forming notches, in accordance with a key code, on opposite side edges of a card or a card casing for accommodating the card, a key cylinder formed with a key slot, a plurality of tumblers, a light emitting element and a photo detector operatively associated with the light emitting element so as to generate an electric signal in response to detection of light from the light emitting element.
Inventors:
SUZUKI MASARU
Application Number:
JP1206182A
Publication Date:
July 13, 1988
Filing Date:
January 28, 1982
Export Citation:
Assignee:
TOKAI RIKA CO LTD
International Classes:
E05B49/00; H01H27/00; H01H36/00