Improved type DW15-630 air circuit breaker is an appearance and practical and new type patent product.
改进型dw15- 630万能式断路器是外观和实用新型专利产品。
The new interlocking intramedullary nail platform locator was designed in 2004 and obtained a China national practical new-type patent in 2008.
该课题组于2004年改进股骨带锁髓内钉平台定位器的设计，2008年申请并获得国家实用新型专利。
Model QZ100K drill was developed by the machinery plant, Changsha Institute of Mining Research, With a China National practical new-type patent.
QZ100K型潜孔钻机由本院机械厂研制，并已获国家实用新型专利。
Model QZ100K drill was developed by the machinery plant, Changsha Institute of Mining Research, With a China National practical new-type patent.
QZ100K型潜孔钻机由本院机械厂研制，并已获国家实用新型专利。
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