Introduction and removal of granular solid materials into or from closed chambers at increased pressure,申请号US19520293134-传众专利搜索

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发明名称	Introduction and removal of granular solid materials into or from closed chambers at increased pressure
摘要
申请公布号	US2788133(A)	申请公布日期	1957.04.09
申请号	US19520293134	申请日期	1952.06.12
申请人	KOPPERS COMPANY, INC.	发明人	DANIELS JOSEPH
分类号	B65G53/46;B65G53/48	主分类号	B65G53/46
代理机构		代理人
主权项
地址

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