Demountable building
United States Patent 2820990
US Patent References:
/1203019.html
- - 1203019

Silo top
- - 1826378

Silo roof
- - 2092722

Building
- - 2256050


Inventors:
Johnson, Robert F.
Publication Date:
01/28/1958
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Assignee:
Johnson, Robert F.
Primary Class:
52/81.400
Other Classes:
52/461, 52/82, D25/19
International Classes:
E04B1/32; E04B1/343; E04B1/35
Foreign References:
FR899373A
DE831305C