DIFF Subgroup
G01P 13/02 Indicating direction only, e.g. by weather vane
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Indicating or recording presence or absence of movement; Indicating or recording of direction of movement > Indicating direction only, e.g. by weather vane
CPC:
Indicating or recording presence, absence, or direction, of movement (electric switches H01H; counting moving objects G06M7/00) > Indicating direction only, e.g. by weather vane
Of 2 combined children, 1 exist in both systems.
1 codes are CPC-only extensions.
IPC defines codes here since 1980.
Child Classifications
Navigate with arrow keys, Enter to open
- G01P 13/04 Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement since 1980 +1 CPC IPC+CPC Available in IPC and CPC