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发明名称
Dampening device
摘要
申请公布号
US1812720(A)
申请公布日期
1931.06.30
申请号
US19280282420
申请日期
1928.06.02
申请人
JOSEPH SCHULTZ
发明人
SCHULTZ JOSEPH
分类号
B41F7/32
主分类号
B41F7/32
代理机构
代理人
主权项
地址
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