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发明名称
Collapsible spindle
摘要
申请公布号
US2034836(A)
申请公布日期
1936.03.24
申请号
US19340751110
申请日期
1934.11.01
申请人
SCHENCK SR JOHN F
发明人
SR. JOHN F. SCHENCK,
分类号
B65H54/54
主分类号
B65H54/54
代理机构
代理人
主权项
地址
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