Undertaking
Patent
1979-04-09
1981-08-04
Pinkham, Richard C.
Undertaking
A63K 102
Patent
active
042818311
ABSTRACT:
Apparatus including a pair of portable sections for use in a combined horse race track and dog race track so that in one position of the portable sections, the horse race track may be used and in another position of such sections the dog race track may be used. The invention includes power plants for selectively moving the portable sections into and out of operative position and apparatus for aligning the portable sections with the fixed sections of the dog race track when the sections are moved into operative position.
REFERENCES:
patent: 2290242 (1942-07-01), Kasold
patent: 2650826 (1953-09-01), Alessio
patent: 2757930 (1956-08-01), White et al.
patent: 2836419 (1958-05-01), White et al.
patent: 3166314 (1965-01-01), Weinstein
patent: 3897734 (1975-08-01), Watts
Kramer Arnold W.
Pinkham Richard C.
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