ENERGY OPERATING SYSTEM

Electrical and Scientific Apparatus

Owner

ADVANCED POWER TECHNOLOGIES, INC.

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APTOS

Electrical and Scientific Apparatus

Owner

ADVANCED POWER TECHNOLOGIES, INC.

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NIGHTWATCH/DAYWATCH

Building Construction and Repair

Owner

ADVANCED POWER TECHNOLOGIES, INC.

Mar 21, 2000

Building Construction and Repair

Owner

ADVANCED POWER TECHNOLOGIES, INC.

Jul 25, 2000