Interactive control electronic directory

Details Interactive control electronic directory Interactive control electronic directory

1997-03-12

2000-06-27

Chan, Wing F.

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

379354, H04M 1100

Patent

active

06081585&

ABSTRACT:
Electronic directory comprising:

REFERENCES:
patent: 4885580 (1989-12-01), Noto et al.
patent: 5329506 (1994-07-01), Kitta et al.
patent: 5457738 (1995-10-01), Sylvan

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