DIFF Subgroup
E01B 35/08 for levelling
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Applications of measuring apparatus or devices for track-building purposes > for measuring irregularities in longitudinal direction > for levelling
CPC:
Applications of measuring apparatus or devices for track-building purposes (apparatus on locomotives or cars to indicate or record bad track sections B61K9/00; measuring angles, linear dimensions, or irregularities in general G01B, G01C) > for measuring irregularities in longitudinal direction > for levelling
No child classifications to compare. This is a leaf node in both IPC and CPC.