A double-hung window arrangement and an electrical window operator for operating an upper sash section of such an arrangement
A Standard patent application filed on 29 January 1996 credited to Moller, Brent
Details
Application number :
42195
Application type :
Standard
Application status :
LAPSED
Under opposition :
No
Proceeding type :
Invention title :
A double-hung window arrangement and an electrical window operator for operating an upper sash section of such an arrangement