US PATENT SUBCLASS 235 / 60.18
.~.~.~.~ Function indicating character or symbol

Current as of: June, 1999
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235 /   HD   REGISTERS

61 R  DF  CALCULATORS {52}
58 R  DF  .~ Recording {7}
60 R  DF  .~.~ Key set {31}
60.15  DF  .~.~.~ Non-numerical data {3}
60.18.~.~.~.~ Function indicating character or symbol

DEFINITION

Classification: 235/60.18

(under subclass 60.15) Subject matter in which the recorded data comprises distinctive characters or symbols for the purpose of indicating the nature of some phase of a calculating operation. These characters or symbols may be indicative of the totalizer or totalizers selected for entering or total taking operations, the nature of an entering operation, as addition or subtraction or the positive or negative condition of the amount standing in a totalizer, etc.