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发明名称
Draft gear
摘要
申请公布号
US1855213(A)
申请公布日期
1932.04.26
申请号
US19280283084
申请日期
1928.06.05
申请人
EGON ALMA CARL;LYDIA ALMA
发明人
ALMA CARL EGON;ALMA LYDIA
分类号
B61G9/12
主分类号
B61G9/12
代理机构
代理人
主权项
地址
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