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发明名称
Charge forming mechanism
摘要
申请公布号
US1890651(A)
申请公布日期
1932.12.13
申请号
US19220574878
申请日期
1922.07.14
申请人
KOCH CHARLES N
发明人
KOCH CHARLES N.
分类号
F02M21/00
主分类号
F02M21/00
代理机构
代理人
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