Device for rapidly determining the fineness of fibers,申请号US19320640227-传众专利搜索

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发明名称	Device for rapidly determining the fineness of fibers
摘要
申请公布号	US1957886(A)	申请公布日期	1934.05.08
申请号	US19320640227	申请日期	1932.10.29
申请人	HARDY JOHN I	发明人	HARDY JOHN I.
分类号	G01N3/00;G01N33/36	主分类号	G01N3/00
代理机构		代理人
主权项
地址

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