DIFF Subgroup
G01C 15/04 Permanent marks; Boundary markers
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Surveying instruments or accessories not provided for in groups > Means for marking measuring points > Permanent marks; Boundary markers
CPC:
Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00 > Means for marking measuring points > Permanent marks; Boundary markers
No child classifications to compare. This is a leaf node in both IPC and CPC.