Low gradient springs and spring motors using the same,申请号US19580768496-传众专利搜索

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发明名称	Low gradient springs and spring motors using the same
摘要
申请公布号	US3033316(A)	申请公布日期	1962.05.08
申请号	US19580768496	申请日期	1958.10.20
申请人	FOSTER EDWIN E	发明人	FOSTER EDWIN E.
分类号	F03G1/00	主分类号	F03G1/00
代理机构		代理人
主权项
地址

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