Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Design Patent
2003-04-21
2004-08-24
Rademaker, Charles A. (Department: 2913)
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Design Patent
active
D0494952
CLAIM:
The ornamental design for a switching apparatus for telephone set and data transmission, as shown.
REFERENCES:
patent: D436353 (2001-01-01), Taniguchi et al.
patent: D460443 (2002-07-01), Brunner et al.
patent: D463416 (2002-09-01), Tomino et al.
patent: D471535 (2003-03-01), Bey
patent: D473222 (2003-04-01), Chiou
patent: 6636749 (2003-10-01), Holmes et al.
NEC Infrontia Corporation
Rademaker Charles A.
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