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发明名称
Chuck
摘要
申请公布号
US1918439(A)
申请公布日期
1933.07.18
申请号
US19300597409
申请日期
1930.11.22
申请人
WILLIAMS TOOL CORPORATION
发明人
WARMAN LAWRENCE K.
分类号
B23B31/10
主分类号
B23B31/10
代理机构
代理人
主权项
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