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发明名称
Support for thread cleaners
摘要
申请公布号
US1798572(A)
申请公布日期
1931.03.31
申请号
US19280315269
申请日期
1928.10.26
申请人
WELTON JAMES R
发明人
WELTON JAMES R.
分类号
B65H63/06
主分类号
B65H63/06
代理机构
代理人
主权项
地址
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