7 Utility Patents
#539 in Hangzhou
#18,913 in China
#595,257 in the World
Forward Citations = 4
Company Filing History:

Powerchina Huadong Engineering Corporation Limited
where one patent can have more than one assignee
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#539 in Hangzhou
#18,913 in China
#595,257 in the World
Company Filing History:

Get your Inventor Badge Today