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发明名称
Lowering device
摘要
申请公布号
US1993074(A)
申请公布日期
1935.03.05
申请号
US19330698241
申请日期
1933.11.16
申请人
RUDOLPH PAYSON
发明人
PAYSON RUDOLPH
分类号
B66D5/16
主分类号
B66D5/16
代理机构
代理人
主权项
地址
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