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发明名称
Tie form
摘要
申请公布号
US2467931(A)
申请公布日期
1949.04.19
申请号
US19460702796
申请日期
1946.10.11
申请人
DAVIDSON LEONARD D
发明人
DAVIDSON LEONARD D.
分类号
A47G25/76
主分类号
A47G25/76
代理机构
代理人
主权项
地址
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