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发明名称
Counterbalancing means for engraving and copying machines
摘要
申请公布号
US2260157(A)
申请公布日期
1941.10.21
申请号
US19390261806
申请日期
1939.03.14
申请人
FRIEDRICH DECKEL
发明人
ZWICK KURT
分类号
B23Q35/20;B44B1/04;B44B3/00;B44B3/06
主分类号
B23Q35/20
代理机构
代理人
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地址
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