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PCE
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DIFF Subgroup
E06B 7/10

by special construction of the frame members

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Special arrangements or measures in connection with doors or windows > for providing ventilation, e.g. through double windows; Arrangement of ventilation roses > by special construction of the frame members

CPC:

Special arrangements or measures in connection with doors or windows ( ; screening or similar protective devices E06B9/00) > for providing ventilation, e.g. through double windows; Arrangement of ventilation roses (airflow control members per se F24F13/08) > by special construction of the frame members

No child classifications to compare. This is a leaf node in both IPC and CPC.