发明名称
摘要 A two-component blank suitable for minting into a coin is described. The blank consists of a low-carbon steel core completely encased in nickel. The blank has magnetic properties sufficiently similar to a solid nickel coin of the same size that the minted blank is accepted by magnetic property testing coin discriminating devices which accept pure nickel coins.
申请公布号 FR2284292(B1) 申请公布日期 1981.09.25
申请号 FR19750028218 申请日期 1975.09.15
申请人 SHERRITT GORDON MINES LTD 发明人
分类号 C25D7/00;B32B15/01;(IPC1-7):44C21/00 主分类号 C25D7/00
代理机构 代理人
主权项
地址