Hannover
Germany
1
2012-02-02
Bernhard Prevedel from Hannover, DE has applied for patents for these inventions. The list has both pending applications and granted patents:
APPARATUS FOR A PIPE STRING OF A GEOLOGICAL DRILL HOLE, PIPE STRING, METHOD FOR OPERATING A GEOLOGICAL DRILLING GEAR AND METHOD FOR PRODUCING A PIPE STRING FOR A GEOLOGICAL DRILL HOLE
3085389 ⎘