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Optical & Optics
Class Information
Number:
362/168
Name:
Illumination
>
Self powered lamp
>
Nonelectric
>
Selective wavelength transmitting or light blocking means
>
With separate movable selective elements
> Plural
Description:
Subject matter having more than one lens.
Patents under this class:
Patent Number
Title Of Patent
Date Issued
6626555
Portable illumination device
Sep. 30, 2003
5790329
Color changing device for illumination purposes
Aug. 4, 1998
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