Block-out system and device,申请号US19340732326-传众专利搜索

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发明名称	Block-out system and device
摘要
申请公布号	US2049877(A)	申请公布日期	1936.08.04
申请号	US19340732326	申请日期	1934.06.25
申请人	STANDARD MAILING MACHINES COMPANY	发明人	STORCK FREDERICK W.
分类号	B41L11/00	主分类号	B41L11/00
代理机构		代理人
主权项
地址

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