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Filing metadata

Accession number: 0001209191-13-027841
Form type: Form 3
Filer: ION GEOPHYSICAL CORP
CIK: CIK 866609
Filed: May 21, 2013
Reporting period: May 14, 2013
Description: Initial ownership

Documents

0001209191-13-027841-index.htm

Complete submission

0001209191-13-027841.txt

directory listing

Filed by

ION GEOPHYSICAL CORP