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发明名称
Attachment for controlling relative raising and lowering of hand trucks
摘要
申请公布号
US2706569(A)
申请公布日期
1955.04.19
申请号
US19530356545
申请日期
1953.05.21
申请人
BUTLER FRAZIER S
发明人
BUTLER FRAZIER S.
分类号
B62B5/00
主分类号
B62B5/00
代理机构
代理人
主权项
地址
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