公开/公告号CA770660A
专利类型
公开/公告日1967-10-31
原文格式PDF
申请/专利权人 CANADIAN PATENTS AND DEVELOPMENT LIMITED;HER MAJESTY IN RIGHT OF CANADA AS REPRESENTED BY THE MINISTER OF MINES A ND TECHNICAL SURVEYS;
申请/专利号CAD770660
申请日0000-00-00
分类号
国家 CA
入库时间 2022-08-23 14:18:27