Darrell E. Heard

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Washington, DC, US

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Patents Applicationslast 30 patents

Information Patent Application
Hot water snow removal apparatus
- Publication number 20140301725
- Publication date Oct 9, 2014
- Darrell Eugene Heard
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
Hot water snow removal system
- Publication number 20120199111
- Publication date Aug 9, 2012
- Darrell E. Heard
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES