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Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Linear
none
Novotni Slide Rule Co.
U.S.A
Black Bakelite
1929 to 1992
33 cm
Steel Industry
Notes:
"1) Calculations to determine the weight of various metals, including steel, 2) Made for The By-Products Steel Corp., Philadelphia, Pa for customer use 3) Packed with an instruction manual in the original cardboard box"
Image 1
