Remote doorbell chime extender

Details Remote doorbell chime extender Remote doorbell chime extender

2006-04-04

2006-04-04

Wu, Daniel (Department: 2632)

Communications: electrical

Audible indication

Percussion-type sound producer

C340S326000

Reexamination Certificate

active

07023327

ABSTRACT:
A remote chime unit and signal extender assembly are connectable to the circuitry of a primary doorbell system allowing the remote chime to be activated simultaneously with the primary doorbell chime from a stored voltage source.

REFERENCES:
patent: 3017623 (1962-01-01), Bishofberger
patent: 4523193 (1985-06-01), Levinson
patent: 5428388 (1995-06-01), von Bauer
patent: 6175298 (2001-01-01), Xydis
patent: 6414589 (2002-07-01), Angott et al.
patent: 6420860 (2002-07-01), Yamaguchi
patent: 6545595 (2003-04-01), Xydis

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