SCREED EXTENSION DEVICE,申请号USD3572227-传众专利搜索

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发明名称	SCREED EXTENSION DEVICE
摘要
申请公布号	US3572227(A)	申请公布日期	1971.03.23
申请号	USD3572227	申请日期	1968.12.05
申请人	GERALD C. BOWER INC.	发明人	ARNE POULSEN
分类号	E01C19/42;(IPC1-7):E01C19/22	主分类号	E01C19/42
代理机构		代理人
主权项
地址

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