Process and apparatus for surfacing roofing,申请号US19330681070-传众专利搜索

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发明名称	Process and apparatus for surfacing roofing
摘要
申请公布号	US2068767(A)	申请公布日期	1937.01.26
申请号	US19330681070	申请日期	1933.07.19
申请人	THE BARRETT COMPANY	发明人	ROBERT JOHN
分类号	D21J1/20	主分类号	D21J1/20
代理机构		代理人
主权项
地址

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