security box system - has key with light emitting diode and photo electric receiver that provide information transfer link with read/write unit
ADACHI, KENTARO, OTAMA, FUKUSHIMA, JP, ITO, HIROSHI, OTAMA, FUKUSHIMA, JP, ISHIBASHI, KENGO, OSAKA, JP, CHIKAMITUE, MASARU, OSAKA, JP
Year of Publication 26.08.1993
Get full text
Year of Publication 26.08.1993
Patent