Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
E21D 11/38

Waterproofing (in general E02D31/00); Heat insulating; Soundproofing; Electric insulating (for building constructions in general E04B1/62)

Introduced: July 1974

Title

Titles differ between systems:

IPC: Waterproofing; Heat insulating; Soundproofing; Electric insulating

CPC: Waterproofing (in general E02D31/00); Heat insulating; Soundproofing; Electric insulating (for building constructions in general E04B1/62)

Full Title

Full titles differ between systems:

IPC:

Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings , e.g. by assembling > Waterproofing; Heat insulating; Soundproofing; Electric insulating

CPC:

Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling (E21D15/00 - E21D23/00 take precedence; specially for shafts E21D5/00; ; lining pressure water galleries, linings therefor E02B9/06) > Waterproofing (in general E02D31/00); Heat insulating; Soundproofing; Electric insulating (for building constructions in general E04B1/62)

Of 3 combined children, 0 exist in both systems.

3 codes are CPC-only extensions.

Child Classifications

Navigate with arrow keys, Enter to open