EX-21.1 6 a2197215zex-21_1.htm EXHIBIT 21.1
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Exhibit 21.1


Subsidiaries of the Registrant

Subsidiaries   State of Incorporation/Formation
Badger Transport, Inc.   Wisconsin
Brad Foote Gear Works, Inc.   Illinois
Energy Maintenance Service, LLC   Delaware
Tower Tech Systems Inc.   Wisconsin



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Subsidiaries of the Registrant