---
title: PowerCalc Copyright
description: Copyright © 2001-2016 by Electric PowerCalc Holdings Inc.  All rights reserved.
---

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# Copyright

**Copyright © 2001-2016 by Electric Power Calc Holdings Inc.**  All rights reserved. The information on this website is subject to change without notice. **Electric Power Calc Holdings Inc.** and **Electric Power Calc Inc.** assume no liability for any omissions or errors that may appear on this website. *PowerCalc™* is proprietary software of **Electric Power Calc Holdings Inc.** Copyright © 2001-2016 by **Electric Power Calc Holdings Inc.** All rights reserved. Covered by U.S. Patent No. 7,636,650. *PowerCalc™* is a trademark of **Electric Power Calc Holdings Inc.**** NFPA** and **NEC** are trademarks of the National Fire Protection Association.** IEEE** is the trademark of the Institute of Electrical and Electronics Engineers.** NEMA** is the trademark of the National Electrical Equipment Manufacturers.** AutoCAD** and **Revit** are trademarks of Autodesk Inc.  Other trademarks are the property of their respective holders/owners.

 

 

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