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Inventor
SARUYA MAKOTO
JP
2 patents
Patents
2 patents
US6138907A
Oct 31, 2000
Electronic transaction processing system and method for operating same
OKI ELECTRIC IND CO LTD
47 citations
89
US6223169B1
Apr 24, 2001
Electronic transaction processing system with escrow card
OKI ELECTRIC IND CO LTD
19 citations
81