CN100516432C - 排风道的防倒灌装置 - Google Patents
排风道的防倒灌装置 Download PDFInfo
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- CN100516432C CN100516432C CNB2006100179159A CN200610017915A CN100516432C CN 100516432 C CN100516432 C CN 100516432C CN B2006100179159 A CNB2006100179159 A CN B2006100179159A CN 200610017915 A CN200610017915 A CN 200610017915A CN 100516432 C CN100516432 C CN 100516432C
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNB2006100179159A CN100516432C (zh) | 2006-06-07 | 2006-06-07 | 排风道的防倒灌装置 |
Applications Claiming Priority (1)
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CNB2006100179159A CN100516432C (zh) | 2006-06-07 | 2006-06-07 | 排风道的防倒灌装置 |
Publications (2)
Publication Number | Publication Date |
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CN1861955A CN1861955A (zh) | 2006-11-15 |
CN100516432C true CN100516432C (zh) | 2009-07-22 |
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CNB2006100179159A Active CN100516432C (zh) | 2006-06-07 | 2006-06-07 | 排风道的防倒灌装置 |
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CN (1) | CN100516432C (zh) |
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Publication number | Publication date |
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CN1861955A (zh) | 2006-11-15 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Owner name: FIFTH BUILDING INSTALLATION ENGINEERING,HENAN PROV Free format text: FORMER OWNER: WU HANMU Effective date: 20090522 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20090522 Address after: Zip code 100, Jianxi Road, Zhengzhou, Henan, China: 450003 Applicant after: Henan fifth construction and installation engineering (Group) Co., Ltd. Co-applicant after: Wu Hanmu Address before: Five, building 13, building No. 51, Jianshe West Road, Henan, Zhengzhou, China: 450052 Applicant before: Wu Hanmu |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |