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摘要
申请公布号
US1901279(A)
申请公布日期
1933.03.14
申请号
US19270240492
申请日期
1927.12.16
申请人
BALDWIN JAMES L
发明人
BALDWIN JAMES L.
分类号
B66B11/04
主分类号
B66B11/04
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