Hollow inflatable article
United States Patent 3204959
Inventors:
Nicholls, Bryan F.
Publication Date:
09/07/1965
Other Classes:
137/223, 264/310, 264/275, 249/97
US Patent References:
| 2760775 | Seamless plastic ball with integrally formed valve housing | | | |
| 2935320 | Inflatable valved article | | | |