DIFF Subgroup
F16L 13/004 Full Title
Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints ( joints for rigid pipes of plastics F16L47/00)
F16L 13/004 Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints ( joints for rigid pipes of plastics F16L47/00)