Chemical Match Output

Number:23a

Maker:ITAB Linde Gaserechner
PHOTO

Length: 12½ cm

Gauge Marks:

Scales Front: cm / A B = C D E F = G L K

Scales Back: Instructions

Info: David Rance Collection
Specially commissioned by German Linde A.G. gas company for calculating relationship between Litres, Kg & M3 for the chemical composition of various gasses - unique patented (DE1774408) magnetised slide - slide not reversible but scale used only in conjunction with cursor window in back.
In standard notation the scales are: cm / A CF = DF CIF CI C = D L K