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经营范围
发明名称
Necktie securing device
摘要
申请公布号
US2449539(A)
申请公布日期
1948.09.21
申请号
US19450578191
申请日期
1945.02.16
申请人
BIRDSELL HARRY R
发明人
BIRDSELL HARRY R.
分类号
A44B6/00
主分类号
A44B6/00
代理机构
代理人
主权项
地址
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