US PATENT SUBCLASS 359 / 410
.~.~.~.~ With focusing means

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

362  DF  COMPOUND LENS SYSTEM {8}
399  DF  .~ Telescope {12}
407  DF  .~.~ Binocular {4}
409  DF  .~.~.~ Body supported or with handle {2}
410.~.~.~.~ With focusing means

DEFINITION

Classification: 359/410

With focusing means:

(under subclass 409) Subject matter wherein the supported binocular telescope includes means for bringing an object at varying distances into focus.

(1) Note. Other subclasses in this class indented under subclass 412 with adjustable interocular distance and titled "Spacing of optical elements axially adjustable" may include subject matter related to focusing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

379+, for a microscope with the spacing of optical elements axially adjustable.

425+, for a telescope with focusing or relatively sliding barrels.

506, for an adjustable extended spacing structure for optical elements.