CN300809925S - 钻套 - Google Patents

钻套

Info

Publication number
CN300809925S
CN300809925S CN200730074621.5F CN200730074621F CN300809925S CN 300809925 S CN300809925 S CN 300809925S CN 200730074621 F CN200730074621 F CN 200730074621F CN 300809925 S CN300809925 S CN 300809925S
Authority
CN
China
Prior art keywords
view
drill sleeve
drill
sleeve
design
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN200730074621.5F
Other languages
English (en)
Inventor
季明浩
Original Assignee
上海海事大学
Filing date
Publication date
Application filed by 上海海事大学 filed Critical 上海海事大学
Application granted granted Critical
Publication of CN300809925S publication Critical patent/CN300809925S/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

使用本外观设计的产品为旋转体,后视图、左视图、右视图与主视图相同,省略后视图、左视图、右视图。
CN200730074621.5F 2007-04-13 钻套 Expired - Fee Related CN300809925S (zh)

Publications (1)

Publication Number Publication Date
CN300809925S true CN300809925S (zh) 2008-07-30

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Legal Events

Date Code Title Description
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080730

Main classification number: 15-99