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Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Linear
604
Blundell Harling Ltd.
England
Plastic
est. 1950's & 1960's
12.5 cm
Electro
Notes:
"A pocket ""Electro"" slide rule used for electrical calculations including horsepower, kilowatts, motor voltage drops etc."
Image 1
Image 2
Image 3
Image 4
