US PATENT SUBCLASS 359 / 825
.~.~.~.~.~ Focusing ring

Current as of: June, 1999
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359 /   HD   OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS

642  DF  LENS {32}
811  DF  .~ With support {6}
819  DF  .~.~ Lens mounts {6}
822  DF  .~.~.~ Adjustable {1}
823  DF  .~.~.~.~ With axial adjustment (e.g., adjustable focus, etc.) {3}
825.~.~.~.~.~ Focusing ring

DEFINITION

Classification: 359/825

Focusing ring:

(under subclass 823) Subject matter wherein there is a circular band for adjusting the position of a point at which light rays converge.