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经营范围
发明名称
Coupler spreader
摘要
申请公布号
US1938611(A)
申请公布日期
1933.12.12
申请号
US19280258257
申请日期
1928.03.01
申请人
THE SYMINGTON COMPANY
发明人
SMALL ARTHUR E.
分类号
B61G9/24
主分类号
B61G9/24
代理机构
代理人
主权项
地址
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