A gas arc metal welding gun has a handle which may be rotated freely with respect to a conduit containing a current transfer wire and a gas tube and with respect to an adapter and tip assembly.
申请公布号
US5260546(A)
申请公布日期
1993.11.09
申请号
US19920913874
申请日期
1992.07.15
申请人
INGWERSEN, JOHN A.;MONTAGUE, THOMAS D.;REED, ROBERT G.
发明人
INGWERSEN, JOHN A.;MONTAGUE, THOMAS D.;REED, ROBERT G.
