United States Patent 3448748
Inventors:
Walrave, Louis
Publication Date:
06/10/1969
Other Classes:
135/119, 135/120.300, 135/114, D30/108
International Classes:
E04H15/00; E04H15/28; E04H15/30; A45F1/12; A45F1/16
US Patent References:
| 3223098 | Collapsible shelter construction | | | |
| 3226737 | Beach and picnic blanket | | | |