SC 13G/A | SEC Filings Hub

Filing metadata

Accession number: 0001167674-13-000174
Form type: SC 13G
Filer: AMTECH SYSTEMS INC
CIK: CIK 720500
Filed: Feb 11, 2013
Reporting period: Dec 31, 2012
Description: Passive 5%+ stake

Documents

0001167674-13-000174-index.htm

Complete submission

0001167674-13-000174.txt

directory listing

Filed by

AMTECH SYSTEMS INC