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Filing metadata

Accession number: 0000072162-12-000008
Form type: Form 4
Filer: NL INDUSTRIES INC
CIK: CIK 72162
Filed: May 24, 2012
Reporting period: May 24, 2012
Description: Insider transaction

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0000072162-12-000008-index.htm

Complete submission

0000072162-12-000008.txt

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Filed by

NL INDUSTRIES INC