Undertaking
Patent
1981-10-15
1983-03-29
Pinkham, Richard C.
Undertaking
272 54, A63B 100, A63G 1100
Patent
active
043781128
ABSTRACT:
Play apparatus comprising at least three beam members which are pivotally mounted a relatively short distance above the ground with adjacent end portions being interconnected by a resilient sleeve so that movement of any one of the beam members causes a corresponding movement of the other beam members. Each beam member is pivotally supported between its ends by a pivot mount.
REFERENCES:
patent: 1263917 (1918-04-01), Mills
patent: 1537686 (1925-05-01), Lynn
patent: 2655116 (1953-10-01), Gowland
Crow S. R.
Pinkham Richard C.
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