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PCE
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DIFF Subgroup
G08B 9/14

hydraulic; pneumatic

Introduced: September 1968

Full Title

Order telegraph apparatus, i.e. means for transmitting one of a finite number of different orders at the discretion of the user, e.g. bridge to engine room orders in ships > hydraulic; pneumatic

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

Child Classifications

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  • G08B 9/16 using ratchet IPC+CPC Available in IPC and CPC
  • G08B 9/18 by varying displacement of the fluid IPC+CPC Available in IPC and CPC
  • G08B 9/20 by varying pressure of the fluid IPC+CPC Available in IPC and CPC