Title:
DOOR HANGER AND TRACK CONSTRUCTION
United States Patent 3425162


Inventors:
Halpern, Ernst
Application Number:
US3425162DA
Publication Date:
02/04/1969
Filing Date:
05/04/1966
Assignee:
WILLIAMSBURG STEEL PRODUCTS CO
Primary Class:
Other Classes:
16/105, 16/DIG.34, 49/409
International Classes:
E05D15/06; (IPC1-7): E05D13/02; E05D15/06
View Patent Images:
US Patent References:
Foreign References:
FR724032A1932-04-19
GB990057A1965-04-22
CH293035A1953-09-15