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Title: Circular slide rule with plotting scale and course protracto [Go to resource]
Description: Circular slide rule with plotting scale and course protractor for aeronautical use, E6B-1A flight path computer by Jeppesen & Co., Denver, Colorado, aluminium in plastic case, plus plastic aide-memoire Air-Aid rule copyright 1971 by AOPA License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: circular slide rule (aeronautical) Temporal: 1971 Source: Science Museum Creator: Jeppesen & Co. Identifier: 1990-624 Go to resource More Like this...
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