Retrofittable card reader and carrier select keyboard unit for p

Details Retrofittable card reader and carrier select keyboard unit for p Retrofittable card reader and carrier select keyboard unit for p

1986-05-27

1987-08-25

Burke, Wallace R.

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D14 55, D14 56

Patent

active

D02915669

REFERENCES:
patent: D283890 (1986-05-01), Britz et al.
patent: 3462567 (1969-08-01), Brown
patent: 3850426 (1974-11-01), Blair
patent: 4259699 (1981-03-01), Yoshida
patent: 4277689 (1981-07-01), Thomas et al.
patent: 4472050 (1984-09-01), Stockburger et al.
patent: 4529870 (1985-07-01), Chaum
patent: 4562340 (1985-12-01), Tateisi
patent: 4562342 (1985-12-01), Solo
patent: 4589069 (1986-05-01), Endo et al.
Ericsson Review No. 15ND, May 1984, vol. 61; p. 14; FIG. 4 or p. 15; FIG. 6 on p. 6.
Telephony 1-16-84, p. 107; Anritsu "Magnetic-Card Telephone".

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