Gum ball dispensing telephone

Details Gum ball dispensing telephone Gum ball dispensing telephone

1985-11-18

1987-05-26

Gandy, James M.

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D20 7

Patent

active

D02900050

REFERENCES:
patent: D41790 (1911-09-01), Amsler
patent: D158529 (1950-05-01), Farnson
patent: D192597 (1962-04-01), Sherron et al.
patent: D217156 (1970-04-01), Peoples
patent: D219921 (1971-02-01), Furusawa et al.
patent: D231365 (1974-04-01), Wasserman
patent: D233351 (1974-10-01), Kramer et al.
The Post Office Electrical Engineers' Journal (cl.k) POEEJ, vol. 74, 10-1981; Article re. Customer App. including Payphones; showing on p. 237, Fig. 1, Item (h), Telephone No. 756, and Item (i) Telephone No. 772.
Pargh Catalog 1983 (C) at p. 13: Item 101G-Gum Phone-Tone, showing of coin-operated-Gum Ball Telephone.

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