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发明名称
Inside pipe cutter
摘要
申请公布号
US2048530(A)
申请公布日期
1936.07.21
申请号
US19340757445
申请日期
1934.12.14
申请人
GRAY TOOL COMPANY
发明人
YANCEY JOHN R.
分类号
E21B29/00
主分类号
E21B29/00
代理机构
代理人
主权项
地址
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