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发明名称
Improvements in or relating to chains
摘要
申请公布号
GB532772(A)
申请公布日期
1941.01.30
申请号
GB19390026050
申请日期
1939.09.18
申请人
HAROLD EDMUND AUSTIN
发明人
分类号
B66C13/16;G01L5/04;G01L5/10
主分类号
B66C13/16
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