Cologne
Germany
4
2013-11-28
The entities that hold a legal rights for patent applications filed by inventor Friedrichsen Lutz:
Lutz Friedrichsen from Cologne, DE has applied for patents for these inventions. The list has both pending applications and granted patents:
SWITCH WITH QUENCHING CHAMBER
#2 | 2013-10-10Switch with quenching chamber
#3 | 2013-10-10Switch having a quenching chamber
#4 | 2013-08-15Switch unit with arc-extinguishing units
383959 ⎘