DIFF Subgroup
B28B 23/04 the elements being stressed
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material > wherein the elements are reinforcing members > the elements being stressed
CPC:
Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; (B28B21/00 takes precedence; in units for prefabricated buildings B28B7/22) > wherein the elements are reinforcing members > the elements being stressed
Of 5 combined children, 3 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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- B28B 23/10 the shaping being effected by centrifugal or rotational moulding since 1974 IPC+CPC Available in IPC and CPC
- B28B 23/12 to form prestressed circumferential reinforcements since 1974 IPC+CPC Available in IPC and CPC