Parasitic crane
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United States of America Patent
Stats
-
Apr 4, 1989
Grant Date -
N/A
app pub date -
Aug 25, 1987
filing date -
Aug 25, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A crane has a twin post and a twin boom construction and provides for numerous degrees of freedom. The crane is a trailer and uses the weight of a vehicle to which it is attached for stability when it is in an operating mode. The crane has wheels which may be lifted off the ground to allow its positioning by a vehicle to which it is attached.
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Cited Art Landscape
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