US PATENT SUBCLASS 396 / 23
.~ Convex film surface

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

20  DF  SCANNING CAMERA {4}
23.~ Convex film surface

DEFINITION

Classification: 396/23

Convex film surface:

(under subclass 20) Subject matter wherein a photos:graphic medium surface is bent into the form of a partial cylinder and exposure is made upon the outer cylindrical surface.