at a variable depth setting

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Marine mines, e.g. launched by surface vessels or submarines > Moored mines > at a variable depth setting

CPC:

Marine mines, e.g. launched by surface vessels or submarines (F42B12/00 takes precedence; for practice or training F42B8/28; mine laying or sweeping B63G) > Moored mines > at a variable depth setting

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

Child Classifications

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F42B 22/16 using mechanical means, e.g. plummet and float IPC+CPC Available in IPC and CPC
F42B 22/18 using hydrostatic means IPC+CPC Available in IPC and CPC
F42B 22/20 using magnetic or acoustic depth-control means IPC+CPC Available in IPC and CPC