Leonard Nelson

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Calgary, CA

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Patents Grantslast 30 patents

Information Patent Grant
Snow sled towing device
- Patent number 8,511,234
- Issue date Aug 20, 2013
- Leonard Nelson
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
SNOW SLED TOWING DEVICE
- Publication number 20120312187
- Publication date Dec 13, 2012
- Leonard Nelson
- B61 - RAILWAYS