Props (in the building art E04G25/00); Chocks

Introduced: September 1968

Title

Titles differ between systems:

IPC: Props; Chocks

CPC: Props (in the building art E04G25/00); Chocks

Full titles differ between systems:

IPC:

Props; Chocks

CPC:

Props (in the building art E04G25/00); Chocks

Of 8 combined children, 6 exist in both systems.

2 codes are CPC-only extensions.

3 shared codes have differing titles between IPC and CPC.

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E21D 15/002 CPC only CPC only
E21D 15/005 +1 CPC CPC only CPC only
E21D 15/02 Non-telescopic props IPC+CPC Available in IPC and CPC
E21D 15/14 Telescopic props (general means for fixing telescopic parts together ) IPC+CPC Available in IPC and CPC
E21D 15/48 Chocks or the like +2 CPC IPC+CPC Available in IPC and CPC
E21D 15/50 Component parts or details of props (E21D15/43, E21D15/58, E21D15/60 take precedence) IPC+CPC Available in IPC and CPC
E21D 15/58 Devices for setting props or chocks +3 CPC −2 IPC IPC+CPC Available in IPC and CPC
E21D 15/60 Devices for withdrawing props or chocks +2 CPC IPC+CPC Available in IPC and CPC