| 发明名称 |
Photochromic composition |
| 摘要 |
A photochromic composition consisting essentially of titanium dioxide, ferric oxide and lead nitrate. This photochromic compositon can be combined with moldable materials such as a plastisol and formed into toys, such as dolls.
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| 申请公布号 |
US4134853(A) |
申请公布日期 |
1979.01.16 |
| 申请号 |
US19760755740 |
申请日期 |
1976.12.30 |
| 申请人 |
EHRLICH, ROBERT;EHRLICH, MELVIN |
发明人 |
EHRLICH, ROBERT;EHRLICH, MELVIN |
| 分类号 |
A63H9/00;C09K9/00;G03C1/705;(IPC1-7):G03C1/00 |
主分类号 |
A63H9/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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