Stoneware of high resistance against the perforating power of electrical sparks and making the stoneware专利检索- .分别或作为配合料的制备或处理原料专利检索查询-专利查询网

Stoneware of high resistance against the perforating power of electrical sparks and making the stoneware
申请号	US15576126	申请日	1926-12-18	公开(公告)号	US1642754A	公开(公告)日	1927-09-20
申请人	FELIX SINGER;			发明人	FELIX SINGER;
摘要
权利要求
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