Working barrel packing means,申请号US19280280574-传众专利搜索

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发明名称	Working barrel packing means
摘要
申请公布号	US1828030(A)	申请公布日期	1931.10.20
申请号	US19280280574	申请日期	1928.05.25
申请人	DAVIS RAY L	发明人	DAVIS RAY L.
分类号	F16J15/26	主分类号	F16J15/26
代理机构		代理人
主权项
地址

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