Kaj Guy Nielsen

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Kelowna, CA

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Patents Applicationslast 30 patents

Information Patent Application
Helical screw lift system for an elevator
- Publication number 20070007082
- Publication date Jan 11, 2007
- Kaj Guy Nielsen
- B66 - HOISTING LIFTING HAULING
Information Patent Application
Helical screw lift system for an elevator
- Publication number 20050056492
- Publication date Mar 17, 2005
- Kaj Guy Nielsen
- B66 - HOISTING LIFTING HAULING