Photoelectric switch

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

Design Patent

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Design Patent

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D0453147

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

REFERENCES:
patent: 3584222 (1971-06-01), Nesbitt
patent: D224318 (1972-07-01), Kelm
patent: D313397 (1991-01-01), Willcox
patent: 5003169 (1991-03-01), Sakaguchi
patent: D325376 (1992-04-01), Krasser
patent: D421422 (2000-03-01), La Police
patent: 6140633 (2000-10-01), Iwasaki et al.
patent: 1057950 (1999-09-01), None
Keyence Corporation, Sensor 2000, Product Nos. FS01 and FS-V1, Japan (undated).

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