US PATENT SUBCLASS 353 / 26 A
.~.~ Automatic
Current as of:
June, 1999
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353 /
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OPTICS: IMAGE PROJECTORS
25
DF
SELECTIVE DATA RETRIEVAL
{2}
26 R
DF
.~ Film strip {1}
26 A
.~.~ Automatic
Unofficial Alpha Subclasses: R A
DEFINITION
Classification: 353/26
(under subclass 25) Subject matter wherein the data is stored on a strip of film of indeterminate length which usually is supported on a pair of reels which are rotated to bring selected portions of the data into position for projection.