Electrical symbols led the way in 1947, and formed the patterns of diagrams to follow, such as those released with the JIC Hydraulic Standards in 1948, and the JIC Pneumatic Standards in 1950. The Graphic symbols portion of the Hydraulic anbsp;...
|Title||:||Graphic Symbols for Fluid Power Diagrams|
|Author||:||United States of America Standards Institute. Subcommittee no. 10 on Fluid Power Diagrams|