US PATENT SUBCLASS 396 / 138
.~ Mechanical rangefinder

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

89  DF  WITH EXPOSURE OBJECTIVE FOCUSING MEANS, FOCUSING AID, OR RANGEFINDING MEANS {28}
138.~ Mechanical rangefinder {1}
139  DF  .~.~> Rangefinder coupled with focusing {4}

DEFINITION

Classification: 396/138

Mechanical rangefinder:

(under subclass 89) Subject matter including nonelectrical means to measure the distance from the camera to the object.

SEE OR SEARCH THIS CLASS, SUBCLASS:

94, for mechanical rangefinding means with lens characteristic compensating.

, FOR 809+, for foreign art collections involving camera structure and rangefinder.

SEE OR SEARCH CLASS

356, Optics: Measuring and Testing,

3+, for rangefinders, per se.