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Jan Maarten van Helden

IBIhc Holland Ie B.V.: 1 patents #1 of 1Top 100%

Bergschenhoek, NL: #2 of 7 inventorsTop 30%

Overall (2011): #115,136 of 364,097Top 35%

1 Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
D637543	Dredging vessel	—	2011-05-10