Method of making a mask,申请号US19540425107-传众专利搜索

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发明名称	Method of making a mask
摘要
申请公布号	US2919218(A)	申请公布日期	1959.12.29
申请号	US19540425107	申请日期	1954.04.23
申请人	OHIO SEALER AND CHEMICAL CORPORATION	发明人	MAY WILLIAM E. LE
分类号	B05B15/04	主分类号	B05B15/04
代理机构		代理人
主权项
地址

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