Title:
GROUND COVERING CAPABLE FOR USE IN PLAYING TENNIS IN THE OPEN AIR OR UNDER COVER
United States Patent 3438312
Inventors:
Becker, Jean P. M.
Mennessier, Andre H. F.
Publication Date:
04/15/1969
Assignee:
Jean, Becker P. M.
Andre, Mennessier H. F.
Other Classes:
472/92, 404/19, D25/153, 52/177, 428/137, 52/673, 428/53
International Classes:
E01C13/04; E04F15/10; E01C13/00; E01C5/20
US Patent References:
| 3174411 | Floorings for taking-off and landing | | | |
| 3213586 | Joined screen sections | | | |