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2 141 070

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C1

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IPC

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Application

98111300/06, 1998-06-15

(24)

Start date

1998-06-15

(22)

Actual filing date

1998-06-15

(45)

Published

1999-11-10

(72)

Inventor

Ratanov K.A.Zagirov M.M.Zherebtsov E.P.

(73)

Holder

Aktsionernoe Obshchestvo

METHOD OF MANUFACTURE OF LINED PIPE Russian patent published in 1999 - IPC

Abstract RU 2141070 C1

FIELD: manufacture of steel pipes with plastic lining. SUBSTANCE: pinching the envelope and fitting the end-piece is effected by crimping over diameter of pipe and at length of end-piece. EFFECT: intactness of pipe ends; enhanced operational reliability of protector in protecting the end-piece and welded joint of pipe. 4 cl, 2 dwg

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RU 2 141 070 C1

Authors

Ratanov K.A.

Zagirov M.M.

Zherebtsov E.P.

Dates

1999-11-10—Published

1998-06-15—Filed

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