Dortmund
Germany
1
2010-09-02
Ulf-Steffen Bäumer from Dortmund, DE has applied for patents for these inventions. The list has both pending applications and granted patents:
METHOD OF AND DEVICE FOR BUTT WELDING WITHOUT WELD FILLER MATERIALS THIN METAL SHEETS USING CLAMPING PRESSING DEVICES, AT LEAST ONE PRESSING ELEMENT BEING SUITABLE FOR APPLYING TWO OR MORE DISTINCT PRESSURE LEVELS
3830430 ⎘