using brick- laying machines

Introduced: September 1968

Title

Titles differ between systems:

IPC: using brick-laying machines

CPC: using brick- laying machines

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 > Lining with building materials > with bricks > using brick-laying machines

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) > Lining with building materials (E21D11/02, E21D11/14 take precedence ) > with bricks > using brick- laying machines

No child classifications to compare. This is a leaf node in both IPC and CPC.