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Patente aus den USA 1955

Revision as of 18:53, 24. Jan 2009 Revision as of 19:03, 24. Jan 2009
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*<b>[[Patent:US2717121]]</b> 06.09.1955 [[Luhn, Hans P.]] [[IBM]] : <i>Keyboard</i> *<b>[[Patent:US2717121]]</b> 06.09.1955 [[Luhn, Hans P.]] [[IBM]] : <i>Keyboard</i>
*<b>[[Patent:US2717311]]</b> 06.09.1955 Ogletree William A Philco Corp : <i>Simplified binary adder and multiplier circuit</i> *<b>[[Patent:US2717311]]</b> 06.09.1955 Ogletree William A Philco Corp : <i>Simplified binary adder and multiplier circuit</i>
-*<b>[[Patent:US2717733]]</b> 13.09.1955 Johnson Richard, Luhn Hans [[IBM]] : <i>Typewriter controlled calculator</i> +*&lt;b>
*<b>[[Patent:US2717734]]</b> 13.09.1955 [[Hofgaard, Rolf]] : <i>Relay calculating machine</i> *<b>[[Patent:US2717734]]</b> 13.09.1955 [[Hofgaard, Rolf]] : <i>Relay calculating machine</i>
*<b>[[Patent:US2718357]]</b> 20.09.1955 [[Sandor, A.]] none : <i>Logarithmic Calculator</i> *<b>[[Patent:US2718357]]</b> 20.09.1955 [[Sandor, A.]] none : <i>Logarithmic Calculator</i>

Revision as of 19:03, 24. Jan 2009



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