| 发明名称 |
METHOD OF PRODUCING RECORDS |
| 摘要 |
The front surface of a calendar-formed sheet mainly consisting of vinyl resin is hardening-mirror-finished by press working and sound grooves are engraved in the finished front surface by cutting.
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| 申请公布号 |
WO0108137(A1) |
申请公布日期 |
2001.02.01 |
| 申请号 |
WO2000JP01286 |
申请日期 |
2000.03.03 |
| 申请人 |
TOYO KASEI KABUSHIKI KAISHA;ISHIMARU, HITOSHI |
发明人 |
ISHIMARU, HITOSHI |
| 分类号 |
B29C43/00;B29C43/24;G11B3/68;(IPC1-7):G11B3/68;G11B3/70;B29C59/02 |
主分类号 |
B29C43/00 |
| 代理机构 |
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