US PATENT SUBCLASS 235 / 79
.~.~ Cylinder
Current as of: June, 1999
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| 235 / | HD | REGISTERS |
|
| 61 R | DF | CALCULATORS {52} |
| 77 | DF | .~ Single axis {3} |
| 79 |  | .~.~ Cylinder {3} |
| 79.5 | DF | .~.~.~> Slide rules |
| 80 | DF | .~.~.~> Keyless {1} |
| 82 R | DF | .~.~.~> Key operated {6} |
DEFINITION
Classification: 235/79
(under subclass 77) Calculating machines, whose registering devices are composed of cylindrical members mounted for rotation on a common axis.