Telephone line use enablement of lottery participation

Details Telephone line use enablement of lottery participation Telephone line use enablement of lottery participation

2005-06-14

2005-06-14

Chan, Wing F. (Department: 2643)

Telephonic communications

Telephone line or system combined with diverse electrical...

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

C463S041000, C902S023000

Reexamination Certificate

active

06907114

ABSTRACT:
A lottery is provided, requiring participants to use a telephone company's line, or line segments.

REFERENCES:
patent: 4969183 (1990-11-01), Reese
patent: 5354069 (1994-10-01), Guttman et al.
patent: 5365575 (1994-11-01), Katz
patent: 5550909 (1996-08-01), Chanda et al.
patent: 5812765 (1998-09-01), Curtis
patent: 6117013 (2000-09-01), Eiba
patent: 6263054 (2001-07-01), Haefliger
patent: 6553104 (2003-04-01), Haefliger

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