DIFF Main Group
E01D 21/00 Methods or apparatus specially adapted for erecting or assembling bridges
Introduced: September 1968
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
IPC defines codes here since 1995.
Child Classifications
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- E01D 21/06 by translational movement of the bridge or bridge sections since 1995 +1 CPC IPC+CPC Available in IPC and CPC
- E01D 21/08 by rotational movement of the bridge or bridge sections since 1995 IPC+CPC Available in IPC and CPC