Shanghai
China
2
2020-03-19
The entities that hold a legal rights for patent applications filed by inventor YANG Minjun:
Minjun YANG from Shanghai, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
Threading method, rolling head, apparatus, module and production line for pipe thread, and products thereof
#2 | 2018-06-21Method, module, and apparatus for roll-processing external pipe thread, and external pipe thread production line
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