| 发明名称 |
IMAGE CARD, IMAGE ENGRAVING DEVICE AND IMAGE ENGRAVING METHOD |
| 摘要 |
An image card has an image formed on a card base by engraving striped grooves having different angles according to the degree of shading of the image by the engraving.
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| 申请公布号 |
US2013056973(A1) |
申请公布日期 |
2013.03.07 |
| 申请号 |
US201213649901 |
申请日期 |
2012.10.11 |
| 申请人 |
SEMCO CORPORATION;SEMCO CORPORATION |
发明人 |
HOSHIYAMA YUICHI |
| 分类号 |
B42D15/00 |
主分类号 |
B42D15/00 |
| 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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