Cite Filings / BCHT / 0001477932-12-001143

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10-K

Annual Report

Birchtech Corp. Filed 2012-04-12 Acc 0001477932-12-001143

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10-K Annual Report , midwest_10k.htm

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2013-03-13 10-K Annual Report
2012-04-12 10-K Annual Report
2011-04-19 10-K Annual Report

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