DIFF Subgroup
H02H 1/04 Arrangements for preventing response to transient abnormal conditions, e.g. to lightning
Introduced: September 1968
Full Title
Details of emergency protective circuit arrangements > Arrangements for preventing response to transient abnormal conditions, e.g. to lightning
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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