Door chime

Details Door chime Door chime

2007-11-13

2007-11-13

Spear, Robert M. (Department: 2913)

Measuring, testing, or signalling instruments

Security or signal instrument or casing

Aural, i.e., audible

Design Patent

active

29269495

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

REFERENCES:
patent: D176843 (1956-02-01), Dreyfuss
patent: D183152 (1958-07-01), Welhofer
patent: D264320 (1982-05-01), Doggart
patent: D394124 (1998-05-01), Mackert et al.
patent: D399588 (1998-10-01), St. Ives
patent: D456929 (2002-05-01), Russello et al.
patent: D484633 (2003-12-01), Campagna
patent: D541689 (2007-05-01), Meyers et al.

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