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发明名称
Film extensibility testing method and apparatus
摘要
申请公布号
US2457788(A)
申请公布日期
1948.12.28
申请号
US19450619387
申请日期
1945.09.29
申请人
DEN AKKER JOHANNES A VAN
发明人
AKKER JOHANNES A. VAN DEN
分类号
G01N33/32
主分类号
G01N33/32
代理机构
代理人
主权项
地址
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