Siren

Details Siren Siren

1993-07-06

1994-03-22

Burke, Wallace R.

Measuring, testing, or signalling instruments

Security or signal instrument or casing

Aural, i.e., audible

Patent

active

D03453170

REFERENCES:
patent: D279771 (1985-07-01), Hinata
patent: D279965 (1985-08-01), Mikami
patent: D292498 (1987-10-01), Hayashi
patent: D292895 (1987-11-01), Hayashi
patent: D297918 (1988-10-01), Kamada

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