Sandwich plate ramps
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United States of America Patent
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N/A
Issued Date -
May 27, 2004
app pub date -
Jul 9, 2003
filing date -
Sep 4, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A moveable ramp has a load-bearing deck formed of a sandwich structure comprising upper and lower metal plates and an intermediate layer of plastic bonded to the metal plates so as to transfer shear forces between them.
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