Floor structure
United States Patent 2670060
US Patent References:
/0848075.html
- - 0848075

Block flooring and process of making the same
- - 1622104

Stair nosing
- - 1681073

Structural element
- - 1900541

Sheet metal railway grade crossing
- - 1965026


Inventors:
Fenske, Harry D.
Publication Date:
02/23/1954
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Assignee:
NAT STEEL CORP
Primary Class:
52/181
Other Classes:
52/368, 404/19, 52/377
International Classes:
B61D17/10; B62D25/20; E04B5/10; B61D17/04
US Patent References:
1967620Metal floor beam construction
2030515Method of manufacturing noncorrosive armored metal pipe
2061825Method of treating coated pipe
2062843Structural element
2068995Coating and method of protecting surfaces against corrosion
2084853Floor and ceiling support
2106390Building board
2180317Metal decking
2216250Stair tread and floor slab surfacing
2261831Scaffolding structure
2294550Portable deck
2472100Bituminous mastic coated metal sheet