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发明名称
Cleaning tool
摘要
申请公布号
US2301853(A)
申请公布日期
1942.11.10
申请号
US19410399552
申请日期
1941.06.24
申请人
AMERICAN TELEPHONE AND TELEGRAPH COMPANY
发明人
CANNON FRANK JESS
分类号
B24B23/06
主分类号
B24B23/06
代理机构
代理人
主权项
地址
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