Slide rule, parallel resistance and Ohm's Law calc

Made:
1949 in Illinois

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Slide rule, parallel resistance and Ohm's Law calculators on same slider, cardboard, made 1949 by Ohmite Manufacturing Company, Illinois

Details

Category:
Mathematics
Object Number:
1985-260
type:
ready reckoner (electrical engineering)
credit:
Crosby, R.C.