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发明名称
Perfectionnements apportés aux dispositifs obturateurs pour tubes ou semblables
摘要
申请公布号
FR834477(A)
申请公布日期
1938.11.22
申请号
FRD834477
申请日期
1938.03.01
申请人
发明人
ERWIN HILLEBRAND
分类号
B65D47/20
主分类号
B65D47/20
代理机构
代理人
主权项
地址
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