Koeln
Germany
2
2012-06-28
Joachim Ohlert from Koeln, DE has applied for patents for these inventions. The list has both pending applications and granted patents:
METHOD AND DEVICE FOR PRODUCING A MICROALLOYED STEEL, IN PARTICULAR A PIPE STEEL
METHOD FOR HOT ROLLING AND FOR HEAT TREATMENT OF A STEEL STRIP
3200390 ⎘