Internal pipe alignment clamps

Full Title

Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass > for holding or positioning work > aligning cylindrical work; Clamping devices therefor > Internal pipe alignment clamps

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR

Subclass:

SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM