DIFF Subgroup
H01S 3/091 using optical pumping
Introduced: July 1974
Full Title
Full titles differ between systems:
IPC:
Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range > Processes or apparatus for excitation, e.g. pumping > using optical pumping
CPC:
Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range (semiconductors lasers H01S5/00) > Processes or apparatus for excitation, e.g. pumping > using optical pumping
Of 3 combined children, 2 exist in both systems.
1 codes are CPC-only extensions.
IPC defines codes here since 1974.
Child Classifications
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