Pipes and tubular conduits – Plural duct – Coaxial
Reexamination Certificate
2008-01-29
2008-01-29
Hook, James (Department: 3754)
Pipes and tubular conduits
Plural duct
Coaxial
C138S121000, C138SDIG011
Reexamination Certificate
active
11053591
ABSTRACT:
A flexible kink-resistant hose configuration includes concentric tubes with longitudinal ribs.
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Hook James
Kolisch & Hartwell, P.C.
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