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179640
EXPUNGED

on 1 Aug 1986

JELFLAKE

DOWELL SCHLUMBERGER INCORPORATED (A DELAWARE CORPORATION)

179640 · 5 Jun 1941

005

017

...

Lamellar material to be added to fluid agents employed in treating wel...

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Dowell schlumberger incorporated (a delaware corporation) (1)

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Class 5 (1)

Class 17 (1)

Class 29 (1)

Correspondents

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