US PATENT SUBCLASS 235 / 82 R
.~.~.~ Key operated

Current as of: June, 1999
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235 /   HD   REGISTERS

61 R  DF  CALCULATORS {52}
77  DF  .~ Single axis {3}
79  DF  .~.~ Cylinder {3}
82 R.~.~.~ Key operated {6}
82 C  DF  .~.~.~.~> Comptometer
82 FK  DF  .~.~.~.~> Five key
82 TK  DF  .~.~.~.~> Ten key
82 MK  DF  .~.~.~.~> More than ten keys
82 SK  DF  .~.~.~.~> Single key operated multiplying
82 K  DF  .~.~.~.~> Key set

Unofficial Alpha Subclasses: R C FK TK MK SK

DEFINITION

Classification: 235/82

(under subclass 79) Calculating-machines having registering devices composed of a series of cylinders placed side by side upon a common shaft and being directly operated by the depression of keys, with which the machine is provided.