Bolster supporting spring unit,申请号US19360059427-传众专利搜索

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发明名称	Bolster supporting spring unit
摘要
申请公布号	US2128505(A)	申请公布日期	1938.08.30
申请号	US19360059427	申请日期	1936.01.16
申请人	CARDWELL-WESTINGHOUSE COMPANY	发明人	SPROUL DONALD F.
分类号	B61F5/12	主分类号	B61F5/12
代理机构		代理人
主权项
地址

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