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Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Linear
British Petroleum
Graphoplex
France
Plastic
est 1960's
3.3 cm x 15.2 cm
Refineing Industry
Notes:
1) SMBP Stack-Loss Slide Rule 2) Used in a refinery to determine excess air and oxygen in flue gases
Image 1
Image 2
Image 3
Image 4
Image 5
Image 6
Image 7
