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发明名称
Positive valve control for internal combustion engines
摘要
申请公布号
US1937152(A)
申请公布日期
1933.11.28
申请号
US19310582058
申请日期
1931.12.19
申请人
WALTER JUNK
发明人
JUNK WALTER
分类号
F01L1/30
主分类号
F01L1/30
代理机构
代理人
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地址
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