Tool for installing valve springs,申请号US19400345633-传众专利搜索

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发明名称	Tool for installing valve springs
摘要
申请公布号	US2263875(A)	申请公布日期	1941.11.25
申请号	US19400345633	申请日期	1940.07.15
申请人	JOHNSON ERNEST A	发明人	JOHNSON ERNEST A.
分类号	B25B27/24;B25B27/30	主分类号	B25B27/24
代理机构		代理人
主权项
地址

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