Leonard Arnold Duffy

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Hinesborg, VT, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for producing structures with multiple undercu...
- Patent number 7,828,545
- Issue date Nov 9, 2010
- Leonard Arnold Duffy
- A44 - HABERDASHERY JEWELLERY

Patents Applicationslast 30 patents

Information Patent Application
Apparatus and method for producing structures with multiple undercu...
- Publication number 20110121488
- Publication date May 26, 2011
- Leonard Arnold Duffy
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL