Friel-Sturdy radiographic slide rule with case, to determine exposure times for medical X-rays

Made:: circa 1946 in England

manufacturer:: Unique Slide Rule Company Limited

Friel-Sturdy radiographic slide rule with case by the Unique Slide Rule Company, used to determine exposure times for medical X-rays.

Details

Category:: Mathematics

Object Number:: 1998-631

Materials:: wood, plastic, cardboard and complete

Measurements:: overall: 10 x 260 x 48 mm

type:: slide rule (radiation)

credit:: Dr D.J. Friel

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