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发明名称
Type lever pad attachment for typewriting machines
摘要
申请公布号
US2176123(A)
申请公布日期
1939.10.17
申请号
US19360103162
申请日期
1936.09.29
申请人
LUDWIG DENZER
发明人
DENZER LUDWIG
分类号
B41J7/22
主分类号
B41J7/22
代理机构
代理人
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