Bubble blowing top,申请号US19480043033-传众专利搜索

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发明名称	Bubble blowing top
摘要
申请公布号	US2556756(A)	申请公布日期	1951.06.12
申请号	US19480043033	申请日期	1948.08.07
申请人	GRAY WILLIAM J	发明人	GRAY WILLIAM J.
分类号	A63H1/00;A63H33/28	主分类号	A63H1/00
代理机构		代理人
主权项
地址

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