US PATENT SUBCLASS 235 / 405
.~.~ Mechanical computation

Current as of: June, 1999
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400  DF  ORDNANCE OR WEAPON SYSTEMS COMPUTER {10}
404  DF  .~ Aiming {2}
405.~.~ Mechanical computation {1}
406  DF  .~.~.~> With tabular chart, scale, or graph

DEFINITION

Classification: 235/405

Mechanical computation:

(under subclass 404) Subject matter wherein the calculations are made solely by mechanical means.

(1) Note. In this subclass, motors may be utilized to drive various cams, followers, or ballistic mechanisms, but they do not perform the calculations.