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发明名称
Method and apparatus for detecting progressive fractures or the like in heavily stressed working members
摘要
申请公布号
US2326352(A)
申请公布日期
1943.08.10
申请号
US19400366156
申请日期
1940.11.18
申请人
FLANNERY BOLT COMPANY
发明人
GREENSLADE GROVER R.
分类号
G01N27/20
主分类号
G01N27/20
代理机构
代理人
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