SOUND-PROOF DOUBLE DOOR AND DOOR FRAME ESPECIALLY INTENDED FOR FIRE-PROOF DOORS,申请号GB19750020432-传众专利搜索

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发明名称	SOUND-PROOF DOUBLE DOOR AND DOOR FRAME ESPECIALLY INTENDED FOR FIRE-PROOF DOORS
摘要
申请公布号	GB1482828(A)	申请公布日期	1977.08.17
申请号	GB19750020432	申请日期	1975.05.14
申请人	SCHUBEIS E	发明人
分类号	E06B1/52;E06B5/16;E06B5/20;(IPC1-7):E06B1/52	主分类号	E06B1/52
代理机构		代理人
主权项
地址

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