PNEUMATIC SIGNALLING,申请号CAD538887-传众专利搜索

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发明名称	PNEUMATIC SIGNALLING
摘要
申请公布号	CA538887(A)	申请公布日期	1957.04.02
申请号	CAD538887	申请日期
申请人	EDWARD J. POITRAS	发明人	EDWARD J. POITRAS
分类号		主分类号
代理机构		代理人
主权项
地址

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