Stress breaker for dental restorations,申请号US19560604562-传众专利搜索

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发明名称	Stress breaker for dental restorations
摘要
申请公布号	US2797456(A)	申请公布日期	1957.07.02
申请号	US19560604562	申请日期	1956.08.16
申请人	AUSTENAL, INC.	发明人	ZAHN ERIC H.
分类号	A61C13/267;A61C13/32	主分类号	A61C13/267
代理机构		代理人
主权项
地址

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