Root
Switzerland
2
2006-07-06
The entities that hold a legal rights for patent applications filed by inventor Engel Werner:
Werner Engel from Root, CH has applied for patents for these inventions. The list has both pending applications and granted patents:
Generating elevator or escalator installation fault log
#2 | 2005-03-24Method of and apparatus for operating an elevator installation in a commissioning operation mode and an acceptance check mode
4656447 ⎘