Pulverized material sampler,申请号US19400364941-传众专利搜索

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发明名称	Pulverized material sampler
摘要
申请公布号	US2301815(A)	申请公布日期	1942.11.10
申请号	US19400364941	申请日期	1940.11.08
申请人	ROBISON SIDNEY J	发明人	ROBISON SIDNEY J.
分类号	G01N1/20	主分类号	G01N1/20
代理机构		代理人
主权项
地址

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