Pipes and tubular conduits – Plural duct – Longitudinally extending common wall
Reexamination Certificate
2003-10-27
2010-12-14
Hook, James F (Department: 3754)
Pipes and tubular conduits
Plural duct
Longitudinally extending common wall
C138S116000, C138S117000, C138S109000
Reexamination Certificate
active
07849885
ABSTRACT:
A hose member having a central region surrounded by a circumferential portion comprising a number of metal tubes that are substantially parallel to each other and wound in a helical manner around a longitudinal axis of the hose member. The central region may be defined by a carrier made of a polymeric material, or a longitudinal central cavity.
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Olsen Soren B.
Post Carsten
Hartman Domenica N. S.
Hartman Gary M.
Hartman & Hartman P.C.
Hook James F
Norsk Hydro ASA
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