ARTIFICIAL SKATING SURFACE
United States Patent 3508945
Inventors:
Haemer, Laurence F.
Mcculley, Randolph C.
Stoltz Jr., Vincent J.
Publication Date:
04/28/1970
Assignee:
VINYL PLASTICS INC
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:
| 3171699 | Low-ttorque bushing and composition | | | |
| 3407713 | Skimat | | | |
| 3431203 | FRICTION BEARING OF THERMOPLASTIC MATERIAL AND PROCESS OF MAKING SAME | | | |