Harold E. Stewart

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Sorento, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Barge sweeper
- Patent number 6,968,589
- Issue date Nov 29, 2005
- Holcim (US) Inc.
- Harold Stewart
- B08 - CLEANING

Patents Applicationslast 30 patents

Information Patent Application
Barge sweeper
- Publication number 20030177596
- Publication date Sep 25, 2003
- Harold E. Stewart
- B08 - CLEANING