Hans C. Killingstad

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Orono, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Cleaning system utilizing purified water
- Patent number 8,051,861
- Issue date Nov 8, 2011
- Tennant Company
- Bruce F. Field
- B08 - CLEANING

Patents Applicationslast 30 patents

Information Patent Application
Cleaning system utilizing purified water
- Publication number 20060137127
- Publication date Jun 29, 2006
- Bruce F. Field
- B08 - CLEANING