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发明名称
Choker knob
摘要
申请公布号
US2237618(A)
申请公布日期
1941.04.08
申请号
US19400339180
申请日期
1940.06.06
申请人
WEATHERFORD WILLIAM W
发明人
WEATHERFORD WILLIAM W.
分类号
F16G11/00;F16G11/05;F16G11/14
主分类号
F16G11/00
代理机构
代理人
主权项
地址
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