Static structures (e.g. – buildings) – Specified wear or friction-type traffic-carrying surface
Patent
1978-01-31
1979-10-02
Lesmes, George F.
Static structures (e.g., buildings)
Specified wear or friction-type traffic-carrying surface
52660, 52581, 523091, 428 53, 428 58, 428174, 428597, 428603, B32B 300, E04C 242
Patent
active
041693396
ABSTRACT:
A grating plate includes a succession of opposed symmetrical pyramids having arms connected at their tops with wax-drop shaped reinforcing elements. Fixing means are provided on the sides for connecting a plurality of grating plates together.
REFERENCES:
patent: 2377211 (1945-05-01), Cocken, Jr.
patent: 2434232 (1948-01-01), Singleton
Lesmes George F.
Substratum S.A.
Thibodeau P.
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