Musical door lock

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5564294
SERIAL NO

08313444

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A musical door lock comprises a generally rectangular housing having enclosed therein door lock, an electric door bell and a battery chamber. When a push-button on the outer periphery is pressed to actuate a sound generator inside the housing, the combined electric door bell will release a musical melody or the sound of bird chirps inside the door. A second example provides a frequency regulator instead of a sound generator incorporated with a movable wireless door bell that offers more convenience to the house owners. In addition an anti-burglar device combine with the lock mechanism for releasing a warning signal which may be received by a portable radio receiver. This disclosure is characteristically providing an economical utility of space in a door lock as well as its variety of functions.

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Patent Owner(s)

Patent OwnerAddress
CHEN LAI-FANot Provided

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Lai-Fa Suite 1, 11 Fl. No. 95-8, Chang Ping Road Sec.1, Taichung, TW 2 36

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