DIFF Subgroup
G01C 5/06 by using barometric means
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels > by using barometric means
CPC:
Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels (G01C3/20, G01C3/30 take precedence) > by using barometric means
No child classifications to compare. This is a leaf node in both IPC and CPC.