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Filing metadata

Accession number: 0000071829-18-000073
Form type: Form 4
Filer: NPK International Inc.
CIK: CIK 71829
Filed: May 18, 2018
Reporting period: May 16, 2018
Description: Insider transaction

Documents

0000071829-18-000073-index.htm

Complete submission

0000071829-18-000073.txt

directory listing

Filed by

NPK International Inc.