Audible alarm for security units

Details Audible alarm for security units Audible alarm for security units

1994-12-07

1996-02-06

Word, A. Hugo

Measuring, testing, or signalling instruments

Security or signal instrument or casing

Alarm or control thereof

Patent

active

D03668495

REFERENCES:
patent: D273848 (1984-05-01), Monahan
patent: D277465 (1985-02-01), MacDonald
patent: D297128 (1988-08-01), Guscott et al.
patent: D297316 (1988-08-01), Mastro
patent: D297517 (1988-09-01), Yuen
patent: D304309 (1989-10-01), Vories
patent: D312054 (1990-11-01), Melman
patent: D339544 (1993-09-01), Sone
Product brochure, FKI Communications Limited, published prior to Dec. 7, 1994.

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