Photogrpahic suction holder,申请号US19460651213-传众专利搜索

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发明名称	Photogrpahic suction holder
摘要
申请公布号	US2454240(A)	申请公布日期	1948.11.16
申请号	US19460651213	申请日期	1946.03.01
申请人	SUN CHEMICAL CORPORATION	发明人	WEKEMAN STEPHEN N.
分类号	G03B27/60	主分类号	G03B27/60
代理机构		代理人
主权项
地址

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