Heating
With heating gas conveying, agitating, scattering or...
Inventor
active
Multi-train installation for the production of cement...
Process and device for feeding dispersible solid fuels into...
No associations
LandOfFree
Stefan Köllen does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Stefan Köllen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stefan Köllen will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-2662593