Title:
Pivotal door construction and method
United States Patent 3300900
Inventors:
George, Risk
Root, Raymond C.
Sotir, Joseph E.
Publication Date:
01/31/1967
Assignee:
LOUP ENGINEERING COMPANY
Other Classes:
49/504, 49/501, 49/382, 351/161, 49/400
International Classes:
E06B1/52