Tension adjustments for trampolins
United States Patent 2869147
US Patent References:
/RE19272.html
- - RE19272

/0223017.html
- - 0223017

/0272077.html
- - 0272077

/0689240.html
- - 0689240

/1080577.html
- - 1080577


Inventors:
Fenner, Robert M.
Hamilton, Donald E.
Publication Date:
01/20/1959
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Assignee:
Fenner, Robert M.
Hamilton, Donald E.
Primary Class:
482/28
Other Classes:
5/202, 5/175, 182/139, 5/181
US Patent References:
1259022
2534019Foldable frame for trampolins, beds, or the like
2641777Collapsible camp bed