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Die große Enzyklopädie des mechanischen Rechnens

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Patente aus den USA 1955

Revision as of 10:53, 24. Apr 2006 Revision as of 20:13, 22. Jan 2008
Line 35: Line -1:
*<b>[[Patent:US2714987]]</b> 09.08.1955 [[Frieberg, N. R.]] [[NCR]] : <i>Repeat Mechanism for Calculating Machines</i> *<b>[[Patent:US2714987]]</b> 09.08.1955 [[Frieberg, N. R.]] [[NCR]] : <i>Repeat Mechanism for Calculating Machines</i>
*<b>[[Patent:US2714988]]</b> 09.08.1955 [[Brubaker, D. P.]] [[NCR]] : <i>Keyboard Controls for Adding Machines</i> *<b>[[Patent:US2714988]]</b> 09.08.1955 [[Brubaker, D. P.]] [[NCR]] : <i>Keyboard Controls for Adding Machines</i>
-*<b>[[Patent:US2714989]]</b> 09.08.1955 [[Ellerbeck, G. C.]] [[Friden]] : <i>Calculating Machine</i> +*&
*<b>[[Patent:US2714991]]</b> 09.08.1955 [[Hopkins, G. W.]] [[Monroe]] : <i>Sign Control Mechanism for Duplex Registers</i> *<b>[[Patent:US2714991]]</b> 09.08.1955 [[Hopkins, G. W.]] [[Monroe]] : <i>Sign Control Mechanism for Duplex Registers</i>
*<b>[[Patent:US2715778]]</b> 23.08.1955 Murdock Kenneth A : <i>Angle calculator</i> *<b>[[Patent:US2715778]]</b> 23.08.1955 Murdock Kenneth A : <i>Angle calculator</i>

Revision as of 20:13, 22. Jan 2008



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