US PATENT SUBCLASS 362 / 188
.~.~ Movable lamp bulb or lamp bulb support
Current as of:
June, 1999
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362 /
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ILLUMINATION
157
DF
SELF POWERED LAMP
{16}
187
DF
.~ With movable focusing element {1}
188
.~.~ Movable lamp bulb or lamp bulb support
DEFINITION
Classification: 362/188
(under subclass 187) Subject matter wherein the light or the light source support is movable.