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2 179 277

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IPC

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Application

99126101/06, 1999-12-14

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Start date

1999-12-14

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Actual filing date

1999-12-14

(45)

Published

2002-02-10

(72)

Inventor

Valeev M.M.Asadullin M.Z.Zaripov R.V.Usmanov R.R.Aminev F.M.Askarov R.M.Fajzullin S.M.

(73)

Holder

Ooo Rossijskogo Aktsionernogo Obshchestva

PIPELINE CROSSING UNDER ROADWAY Russian patent published in 2002 - IPC

Abstract RU 2179277 C2

FIELD: construction engineering; pipeline erection and repairing. SUBSTANCE: pipeline is laid in protective casing (cylindrical sheath). End seals are installed in-between pipes. Metal ledges are joined to cylindrical sheath; length of intermediate ledge is equal to width of roadway. EFFECT: enhanced reliability of crossing. 1 dwg _

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RU 2 179 277 C2

Authors

Valeev M.M.

Asadullin M.Z.

Zaripov R.V.

Usmanov R.R.

Aminev F.M.

Askarov R.M.

Fajzullin S.M.

Dates

2002-02-10—Published

1999-12-14—Filed

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