Standardized frame element for windows, doors and the like
United States Patent 3040389
Inventors:
Willy, Fengler
Publication Date:
06/26/1962
Assignee:
Platenius, Vertriebs G. M. B. H.
Other Classes:
49/475.100, 52/214, 49/398, 52/656.200
International Classes:
E06B3/26; E06B3/96; E06B3/04