Conductor selector chart in slide-rule format

Conductor selector chart in slide-rule format
Science Museum Group
© The Board of Trustees of the Science Museum

Conductor selector chart in slide-rule format, made 1958 by Perrygraf, Illinois for Alcoa, Pennysylvania

Details

Category:: Electricity Supply

Object Number:: 1985-253

type:: wires

credit:: Crosby, R.C.

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Conductor selector chart in slide-rule format

Details

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