Pressure switch

Equipment for production – distribution – or transformation of ene – Distribution – modification or control – Switch or casing therefor

Design Patent

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Details

CD13S171000

Design Patent

active

D0559790

CLAIM:
The ornamental design for a pressure switch, as shown and described.

REFERENCES:
patent: 3916130 (1975-10-01), Cade
patent: 4081621 (1978-03-01), Hartley
patent: 4652841 (1987-03-01), Hudspeth et al.
patent: D308193 (1990-05-01), Gaalswyk
patent: D430268 (2000-08-01), Hiramatsu et al.
patent: D437295 (2001-02-01), Gunji et al.
patent: D444722 (2001-07-01), Honma
patent: D456290 (2002-04-01), Gunji et al.
patent: D477287 (2003-07-01), Roman
patent: D497145 (2004-10-01), Seo
patent: D522090 (2006-05-01), Matsumoto et al.
patent: 7071832 (2006-07-01), Miyamoto et al.
patent: 7186934 (2007-03-01), Nakajima

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