Supports – Stand – Plural leg
Patent
1975-03-21
1977-04-05
Hafer, Albert A.
Supports
Stand
Plural leg
248163, 248431, 2481882, F16M 1138
Patent
active
040158063
ABSTRACT:
A double tripod arrangement in which the legs of a first tripod extend to a fixed angle and the feet of a second tripod are adjustably mounted on the legs of the first tripod. The first tripod forms a secure base on which the second tripod can be adjusted for height and for levelling.
REFERENCES:
patent: 821335 (1906-05-01), Butler
patent: 1594365 (1926-08-01), Havbroe
patent: 2282285 (1942-05-01), Olson
patent: 3051425 (1962-08-01), Homrighausen
patent: 3419238 (1968-12-01), Flory
patent: 3632073 (1972-01-01), Nakatani
Elliott Brothers (London) Limited
Hafer Albert A.
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