DIFF Subgroup
E04D 1/04 of ceramics, glass or concrete, with or without reinforcement
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Roof covering by making use of tiles, slates, shingles, or other small roofing elements > Grooved or vaulted roofing elements > of ceramics, glass or concrete, with or without reinforcement
CPC:
Roof covering by making use of tiles, slates, shingles, or other small roofing elements (roofing supports E04D12/00) > Grooved or vaulted roofing elements (E04D1/28, E04D1/30 take precedence) > of ceramics, glass or concrete, with or without reinforcement
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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