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发明名称
Printing mechanism for typewriting machines
摘要
申请公布号
US1967273(A)
申请公布日期
1934.07.24
申请号
US19290412651
申请日期
1929.12.09
申请人
RALPH C. COXHEAD CORPORATION
发明人
TREGO FRANK H.
分类号
B41J1/32
主分类号
B41J1/32
代理机构
代理人
主权项
地址
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