Siren speaker

Details Siren speaker Siren speaker

2000-05-24

2001-12-25

Jackson, Marcus A. (Department: 2911)

Measuring, testing, or signalling instruments

Security or signal instrument or casing

Aural, i.e., audible

Design Patent

active

D0452454

CLAIM:
The ornamental design for a siren speaker, as shown and described.

REFERENCES:
patent: D. 279965 (1985-08-01), Mikami
patent: D. 292895 (1987-11-01), Hayashi
patent: D. 297918 (1988-10-01), Kamada
patent: D. 345317 (1994-03-01), Issa
patent: D. 382221 (1997-08-01), Chen
patent: D. 397636 (1998-09-01), Chu
patent: D. 406074 (1999-02-01), Hu

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