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Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Disk
P56A
Fearns Flame-Cutting Calculator
England
Plastic
c. 1979
dai = 19.2 cm
Metal Fabricating Industry
Notes:
Used to calculate the time to cut metal of various thickness
Image 1
Image 2
Image 3
Image 4
Image 5
