Door phone

Details Door phone Door phone

2010-01-06

2010-06-29

Murphy, Austin (Department: 2911)

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Intercom

Design Patent

active

D0618659

CLAIM:
The ornamental design for a door phone, as shown and described.

REFERENCES:
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patent: D491551 (2004-06-01), Matsui et al.
patent: D505127 (2005-05-01), Yoshida et al.
patent: D519100 (2006-04-01), Shioya et al.
patent: D525160 (2006-07-01), Kurata
patent: D561734 (2008-02-01), Yamada et al.
patent: D562306 (2008-02-01), Jeong et al.
patent: D569819 (2008-05-01), Rinaldi et al.
patent: D595260 (2009-06-01), Takahata
patent: 2004/0091092 (2004-05-01), Unger et al.

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