| 发明名称 |
BILLETTA SFOGLIABILE E PRODOTTI DA ESSA OTTENUTI |
| 摘要 |
<p>A skivable billet having improved uniform heat absorptive ability in which layers of enhanced optical density comprise water soluble polyazo direct dyes such as Formanil Black G and finely divided silica.</p> |
| 申请公布号 |
IT1089167(B) |
申请公布日期 |
1985.06.18 |
| 申请号 |
IT19770030399 |
申请日期 |
1977.12.05 |
| 申请人 |
MINNESOTA MINING & MFG |
发明人 |
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| 分类号 |
G02B5/00;B26D1/00;B32B7/02;B32B23/08;B32B23/14;B44F1/12;(IPC1-7):C08L/ |
主分类号 |
G02B5/00 |
| 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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