Telephone calculator

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment

Design Patent

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Details

CD18S002000

Design Patent

active

D0478885

CLAIM:
The ornamental design for a telephone calculator, as shown and described.

REFERENCES:
patent: 5754642 (1998-05-01), Domoto et al.
patent: D406138 (1999-02-01), Ramirez
patent: D430195 (2000-08-01), Thompson et al.
patent: 6445789 (2002-09-01), Hirano et al.
patent: D471884 (2003-03-01), Hinds et al.

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