Measurement and decimal conversion slide rule for teaching purposes

The slide rule has two distinct parts: a slide (1) carrying conversion tables and also rules and formulae for easy reference, and a case (2) inside which the slide runs. The case has two rows of windows (11,13), one for the input number and one for the output number. Commas to separate long numbers...

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Bibliographische Detailangaben

Hauptverfasser:	ROPERS JEAN YVES, LE NOANE PIERRICK, RICARD JEAN LUC
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ANALOGUE COMPUTERS CALCULATING COMPUTING COUNTING PHYSICS
Online-Zugang:	Volltext bestellen
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