DIFF Subgroup
F28F 13/02 by influencing fluid boundary (boundary-layer control in general F15D)
Introduced: September 1968
Title
Titles differ between systems:
IPC: by influencing fluid boundary
CPC: by influencing fluid boundary (boundary-layer control in general F15D)
Full Title
Full titles differ between systems:
IPC:
Arrangements for modifying heat transfer, e.g. increasing, decreasing > by influencing fluid boundary
CPC:
Arrangements for modifying heat-transfer, e.g. increasing, decreasing (F28F1/00 - F28F11/00 take precedence) > by influencing fluid boundary (boundary-layer control in general F15D)
No child classifications to compare. This is a leaf node in both IPC and CPC.