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Filing metadata

Accession number: 0001127602-12-002097
Form type: Form 5
Filer: MKS INSTRUMENTS INC
CIK: CIK 1049502
Filed: Jan 20, 2012
Reporting period: Dec 31, 2011
Description: Annual insider statement

Documents

0001127602-12-002097-index.htm

Complete submission

0001127602-12-002097.txt

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MKS INSTRUMENTS INC