1/12 cu. foot gas meter
1/12 cu. foot gas meter, with inlet pressure gauge and condensate trap. A watersealed meter used in experiments, modified to the designs of C.G. Hyde, c.1930.
1/12 cu. foot gas meter, with inlet pressure gauge and condensate trap. A watersealed meter used in experiments, modified to the designs of C.G. Hyde, c.1930.
