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.