Keun Hyoung Lee

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Chungcheongnam-Do, KR

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Patents Grantslast 30 patents

Information Patent Grant
Retractable/extendable crank using a cylindrical cam, an end cam, o...
- Patent number 8,328,216
- Issue date Dec 11, 2012
- Keun Hyoung Lee
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS

Patents Applicationslast 30 patents

Information Patent Application
RETRACTABLE/EXTENDABLE CRANK USING A CYLINDRICAL CAM, AN END CAM, O...
- Publication number 20110121536
- Publication date May 26, 2011
- Keun Hyoung Lee
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS