Fire alarm sounder

Details Fire alarm sounder Fire alarm sounder

2008-04-15

2008-04-15

Spear, Robert M. (Department: 2913)

Measuring, testing, or signalling instruments

Security or signal instrument or casing

Alarm or control thereof

Design Patent

active

29292952

CLAIM:
The ornamental design for a fire alarm sounder, as shown and described.

REFERENCES:
patent: D144235 (1946-03-01), Brass
patent: 3253272 (1966-05-01), Schuchard et al.
patent: D265802 (1982-08-01), Vickery
patent: D276708 (1984-12-01), Simpson
patent: 4551707 (1985-11-01), Simpson
patent: D428351 (2000-07-01), Hohlfelder
patent: D429696 (2000-08-01), Taylor
patent: D433644 (2000-11-01), Sakurai et al.
patent: D437298 (2001-02-01), Picozza et al.
patent: D478832 (2003-08-01), Dipple
patent: 6632108 (2003-10-01), Hohlfelder
patent: 6903654 (2005-06-01), Hansen et al.
patent: 2007/0063821 (2007-03-01), Finkle et al.

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