Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Design Patent
2008-02-27
2009-08-04
Rademaker, Charles A (Department: 2916)
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Design Patent
active
D0597519
CLAIM:
The ornamental design for a communication relay exchange control machine, as shown and described.
REFERENCES:
patent: D278710 (1985-05-01), Shimizu et al.
patent: D303655 (1989-09-01), Gonzales et al.
patent: D349503 (1994-08-01), Roy
patent: D456782 (2002-05-01), Nagai et al.
patent: D531589 (2006-11-01), Hsu
patent: D559844 (2008-01-01), Slotin et al.
patent: 2006/0250724 (2006-11-01), Hayashi et al.
Akatsu Masafuku
Igarashi Motomasa
Izumo Takayuki
Kato Masaki
Matsuda Takashi
Frishauf Holtz Goodman & Chick P.C.
Hanson Charles D
NEC Infrontia Corporation
Rademaker Charles A
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