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United States Patent 3222841
US Patent References:
Metallic building wall
- - 2837153

Curtain wall mullion
- - 2976969


Inventors:
Robert, Lipof
Publication Date:
12/14/1965
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Assignee:
AIRE LITE IND INC
Primary Class:
52/482
Other Classes:
52/63, 160/394
International Classes:
A01K1/03; E04B1/58; E04C3/06; E06B9/52; A01K1/02; E04C3/04
Foreign References:
FR1245055A