US PATENT SUBCLASS 359 / 817
.~.~ Foldable or collapsible

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}
817.~.~ Foldable or collapsible

DEFINITION

Classification: 359/817

Foldable or collapsible:

(under subclass 811) Subject matter wherein one part of the supporting structure may be folded with respect to another part or wherein the supporting structure may be folded with respect to the lens to reduce the space occupied by the lens and its support.

SEE OR SEARCH THIS CLASS, SUBCLASS:

406, for collapsible periscopes.

408, for collapsible or foldable binoculars.

474, for collapsible stereoscopic viewers.