DIFF Subgroup
F22B 37/44 of safety valves
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Component parts or details of steam boilers > applicable to more than one kind or type of steam boiler > Applications, arrangements or dispositions of alarm or automatic safety devices > of safety valves
CPC:
Component parts or details of steam boilers > applicable to more than one kind or type of steam boiler > Applications, arrangements or dispositions of alarm or automatic safety devices (for feed-water heaters F22D1/14 ) > of safety valves
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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