Archive of Collections

Details and Image

TypeModel No.MakerCountryConstruction
DateScale LengthArea of Use
SR 726
IWA for AWFGermany
est. 1970's4 cm x 22.4 cmNatural Gas Industry

Notes: 1) Used for natural gas piping calculations for high and low pressure using Biel Lummert formula 2) This slide rule has 2 slides

Image 1

Image 2

Image 3

Image 4

Image 5