CN2731570Y - 一种卡拉ok点播系统的数字版权保护装置 - Google Patents
一种卡拉ok点播系统的数字版权保护装置 Download PDFInfo
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- CN2731570Y CN2731570Y CN 200420009351 CN200420009351U CN2731570Y CN 2731570 Y CN2731570 Y CN 2731570Y CN 200420009351 CN200420009351 CN 200420009351 CN 200420009351 U CN200420009351 U CN 200420009351U CN 2731570 Y CN2731570 Y CN 2731570Y
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Application Number | Priority Date | Filing Date | Title |
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CN 200420009351 CN2731570Y (zh) | 2004-09-27 | 2004-09-27 | 一种卡拉ok点播系统的数字版权保护装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN 200420009351 CN2731570Y (zh) | 2004-09-27 | 2004-09-27 | 一种卡拉ok点播系统的数字版权保护装置 |
Publications (1)
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CN2731570Y true CN2731570Y (zh) | 2005-10-05 |
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CN 200420009351 Expired - Lifetime CN2731570Y (zh) | 2004-09-27 | 2004-09-27 | 一种卡拉ok点播系统的数字版权保护装置 |
Country Status (1)
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CN (1) | CN2731570Y (zh) |
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2004
- 2004-09-27 CN CN 200420009351 patent/CN2731570Y/zh not_active Expired - Lifetime
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: TONGFANG CO., LTD. Free format text: FORMER NAME OR ADDRESS: TSINGHUA TONGFANG CO., LTD. |
|
CP03 | Change of name, title or address |
Address after: 100083 A, block 2907, Tongfang science and Technology Plaza, Beijing Patentee after: Tongfang Co., Ltd. Address before: 100083 A, block 2907, Tongfang science and Technology Plaza, Beijing Patentee before: Qinghua Tongfang Co., Ltd. |
|
C17 | Cessation of patent right | ||
CX01 | Expiry of patent term |
Expiration termination date: 20140927 Granted publication date: 20051005 |