Buzzer

Details Buzzer Buzzer

1999-12-06

2000-08-15

Jackson, Marcus A.

Measuring, testing, or signalling instruments

Security or signal instrument or casing

Aural, i.e., audible

1005

Patent

active

D04294734

REFERENCES:
patent: D254729 (1980-04-01), Mitumori
patent: D297519 (1988-09-01), Shimaya
patent: D401590 (1998-11-01), Tajima et al.
patent: D410211 (1999-05-01), Murano

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