Apparatus for exhausting air,申请号US19270173204-传众专利搜索

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发明名称	Apparatus for exhausting air
摘要
申请公布号	US1776567(A)	申请公布日期	1930.09.23
申请号	US19270173204	申请日期	1927.03.05
申请人	O'LEARY WILLIAM C	发明人	O'LEARY WILLIAM C.
分类号	F04B39/00	主分类号	F04B39/00
代理机构		代理人
主权项
地址

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