Tignieu
France
6
2019-07-11
The entities that hold a legal rights for patent applications filed by inventor Ledru Roger:
Roger Ledru from Tignieu, FR has applied for patents for these inventions. The list has both pending applications and granted patents:
Electric arc-blast nozzle and a circuit breaker including such a nozzle
#2 | 2018-09-13Circuit breaker containing a gas escape hood with sealable opening
#3 | 2018-01-11Circuit breaker equipped with an extensible exhaust cover
#4 | 2010-12-30Relief valve for discharging a dielectric gas between two volumes of a high-voltage or medium-voltage interrupting chamber
#5 | 2009-05-28High voltage circuit breaker with improved gas exhaust
#6 | 2006-01-17Circuit breaker comprising a control assembly and interrupting chamber and method of assembly
2089459 ⎘