CN100480841C - 投影机及其空气过滤装置 - Google Patents
投影机及其空气过滤装置 Download PDFInfo
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- CN100480841C CN100480841C CNB2004100492411A CN200410049241A CN100480841C CN 100480841 C CN100480841 C CN 100480841C CN B2004100492411 A CNB2004100492411 A CN B2004100492411A CN 200410049241 A CN200410049241 A CN 200410049241A CN 100480841 C CN100480841 C CN 100480841C
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- 238000001914 filtration Methods 0.000 title abstract 3
- 238000010586 diagram Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNB2004100492411A CN100480841C (zh) | 2004-06-08 | 2004-06-08 | 投影机及其空气过滤装置 |
Applications Claiming Priority (1)
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CNB2004100492411A CN100480841C (zh) | 2004-06-08 | 2004-06-08 | 投影机及其空气过滤装置 |
Publications (2)
Publication Number | Publication Date |
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CN1707350A CN1707350A (zh) | 2005-12-14 |
CN100480841C true CN100480841C (zh) | 2009-04-22 |
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Application Number | Title | Priority Date | Filing Date |
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CNB2004100492411A Expired - Fee Related CN100480841C (zh) | 2004-06-08 | 2004-06-08 | 投影机及其空气过滤装置 |
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CN (1) | CN100480841C (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN212846312U (zh) * | 2020-03-11 | 2021-03-30 | 深圳光峰科技股份有限公司 | 防尘装置及投影设备 |
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2004
- 2004-06-08 CN CNB2004100492411A patent/CN100480841C/zh not_active Expired - Fee Related
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Publication number | Publication date |
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CN1707350A (zh) | 2005-12-14 |
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PB01 | Publication | ||
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SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: BENQ MOTOR CO., LTD. Free format text: FORMER OWNER: QISDA TECHNOLOGY CO., LTD. Effective date: 20100115 |
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C41 | Transfer of patent application or patent right or utility model | ||
C56 | Change in the name or address of the patentee |
Owner name: QISDA TECHNOLOGY CO., LTD. Free format text: FORMER NAME: BENQ MOTOR CO., LTD. |
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CP03 | Change of name, title or address |
Address after: Taoyuan County of Taiwan Province Patentee after: Qisda Corp. Address before: Taoyuan County of Taiwan Province Patentee before: Benq Corp. |
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TR01 | Transfer of patent right |
Effective date of registration: 20100115 Address after: Tai Wansheng Tai Beishi Patentee after: BENQ Corp. Address before: Tai Wansheng Tao Yuanxian Patentee before: Qisda Corp. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090422 Termination date: 20210608 |
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CF01 | Termination of patent right due to non-payment of annual fee |