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发明名称
Signal device for food package
摘要
申请公布号
US2951764(A)
申请公布日期
1960.09.06
申请号
US19570636353
申请日期
1957.01.25
申请人
CHASE KENNETH J
发明人
CHASE KENNETH J.
分类号
G01N31/22
主分类号
G01N31/22
代理机构
代理人
主权项
地址
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