DIFF Subgroup
E04H 12/20 Side-supporting means therefor, e.g. using guy ropes or struts
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures > Side-supporting means therefor, e.g. using guy ropes or struts
CPC:
Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures (cooling towers E04H5/12; derricks for oil drilling E21B15/00) > Side-supporting means therefor, e.g. using guy ropes or struts
No child classifications to compare. This is a leaf node in both IPC and CPC.