US PATENT SUBCLASS 235 / 73
.~.~ Cylinder

Current as of: June, 1999
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235 /   HD   REGISTERS

61 R  DF  CALCULATORS {52}
72  DF  .~ Parallel axes {3}
73.~.~ Cylinder

DEFINITION

Classification: 235/73

(under subclass 72) Calculating-machines whose registering attachments comprise cylinders placed either singly or in sets on axes parallel with each other.