Portable building
United States Patent 2877508
US Patent References:
Heat-insulating wall
- - 1626655

Building construction
- - 2037895

Panel construction
- - 2589633

Trailer wall construction
- - 2730772


Inventors:
Ewart, John M.
Publication Date:
03/17/1959
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Assignee:
CRAIG SYSTEMS INC
Primary Class:
52/125.200
Other Classes:
52/267, 52/270
International Classes:
E04B1/343; E04H1/12