Inventor
WAHL HANS J
2 patents
Patents
2 patentsUS4621176ANov 4, 1986
Method of and device for monitoring and/or controlling welding current in the high-frequency resistance pressure welding of pipes with longitudinal seams
HOESCH WERKE AG16 citations65
US4298785ANov 3, 1981
Method and device for automatically tracking systems to the center of weld gaps, weld joints and weld reinforcements
HOESCH WERKE AG7 citations65