用作助记装置的玻璃棱镜 021-1246
Chinese
用作助记装置的玻璃棱镜
English
Glass prisms for use as mnemonic devices
Spanish
Prismas de vidrio para uso como dispositivos mnemotécnicos
- Term ID
- 021-1246
- Class
- 21
- Type
- Goods
- Status
- Active · added, not since modified (A)
- Effective date
- 2008-05-22
- Version
- 09-2007