Christopher G. Duncan

United States of America

 
Total IP 1
Total IP Rank # 1,258,739
IP Activity Score 0/5.0    0
IP Activity Rank # 1,660,322

Patents

Trademarks

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Last Patent 2016 - Stringed instrument hemispherica...
First Patent 2016 - Stringed instrument hemispherica...

Latest Inventions, Goods, Services

2016 Invention Stringed instrument hemispherical pull string tensioner. The present invention relates to a axial...