Telephone index devices

Details Telephone index devices Telephone index devices

1974-07-15

1976-03-16

Wolff, John H.

Card, picture, or sign exhibiting

Check, label, or tag

Phone-carried indicia

40102, 401 76, G09F 300

Patent

active

039436497

ABSTRACT:
Telephone index devices including a flat base member which may be secured to a telephone and having binding loops which may be closed and opened for replacement of index sheets. The base member is secured to a telephone instrument by a plug and socket structure.

REFERENCES:
patent: 934888 (1909-09-01), Dahlberg
patent: 2460718 (1949-02-01), Stevens
patent: 3436855 (1969-04-01), Foley
patent: 3706503 (1972-12-01), Foley
patent: 3792544 (1974-02-01), Foley

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