Please provide detailed information on the alignment of US standards with international standards in areas of mechanical and electrical products and children toy products.

请说明美国在机电产品、儿童玩具产品领域实施的标准与国际标准的对接程度及详细清单。

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Mr Cassagnes came up with the idea for a mechanical toy that creates erasable drawings by twisting two dials in the late 1950s, while working as an electrical technician.

BBC: Etch A Sketch inventor Andre Cassagnes dies at 86