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发明名称
Valve-closed bag
摘要
申请公布号
US2102685(A)
申请公布日期
1937.12.21
申请号
US19340710403
申请日期
1934.02.09
申请人
BARTLETT ARKELL
发明人
BOIS ALFRED DU
分类号
B65D30/24
主分类号
B65D30/24
代理机构
代理人
主权项
地址
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