US PATENT SUBCLASS 348 / 140
.~.~ Distance by apparent target size (e.g., stadia, etc.)

Current as of: June, 1999
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61  DF  SPECIAL APPLICATIONS {15}
135  DF  .~ Object or scene measurement {7}
140.~.~ Distance by apparent target size (e.g., stadia, etc.)

DEFINITION

Classification: 348/140

Distance by apparent target size (e.g., stadia, etc.):

(under subclass 135) Subject matter including an instrument for determining a distance to an object based on the known dimension of the object.