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发明名称
Traction mat
摘要
申请公布号
US1863316(A)
申请公布日期
1932.06.14
申请号
US19300504589
申请日期
1930.12.24
申请人
WEBSTER JR TOWNER K
发明人
JR. TOWNER K. WEBSTER,
分类号
B60B39/12
主分类号
B60B39/12
代理机构
代理人
主权项
地址
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