ARTIFICIAL SKATING SURFACE
United States Patent 3508945

Inventors:
Haemer, Laurence F.
Mcculley, Randolph C.
Stoltz Jr., Vincent J.
Publication Date:
04/28/1970
View Patent Images:
Assignee:
VINYL PLASTICS INC
Primary Class:
Other Classes:
508/100, 472/90, 428/15, 404/17, 521/73, 264/49, 521/61, 404/72
International Classes:
E01C13/10; E01C13/00; B44C1/22; B44C5/00; B44C1/20
US Patent References:
3171699Low-ttorque bushing and composition
3407713Skimat
3431203FRICTION BEARING OF THERMOPLASTIC MATERIAL AND PROCESS OF MAKING SAME




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