-
Louvre Windows
-
Patent number 4,226,051
-
Issue date Oct 7, 1980
-
Beta Aluminium Products Limited
-
Norman Thompson
-
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
-
Louvre windows
-
Patent number 4,187,641
-
Issue date Feb 12, 1980
-
Beta Aluminium Products Limited
-
Norman Thompson
-
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
-
Operating means for pivoted windows
-
Patent number 3,986,300
-
Issue date Oct 19, 1976
-
Beta Aluminium Products Limited
-
Norman Thompson
-
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES