CN202074134U - 一种圆筒形风道 - Google Patents
一种圆筒形风道 Download PDFInfo
- Publication number
- CN202074134U CN202074134U CN2011202060367U CN201120206036U CN202074134U CN 202074134 U CN202074134 U CN 202074134U CN 2011202060367 U CN2011202060367 U CN 2011202060367U CN 201120206036 U CN201120206036 U CN 201120206036U CN 202074134 U CN202074134 U CN 202074134U
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- cylindrical shape
- air duct
- air channel
- wallboard
- cylindrical
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Application Number | Priority Date | Filing Date | Title |
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CN2011202060367U CN202074134U (zh) | 2011-06-18 | 2011-06-18 | 一种圆筒形风道 |
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CN2011202060367U CN202074134U (zh) | 2011-06-18 | 2011-06-18 | 一种圆筒形风道 |
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CN202074134U true CN202074134U (zh) | 2011-12-14 |
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CN2011202060367U Expired - Fee Related CN202074134U (zh) | 2011-06-18 | 2011-06-18 | 一种圆筒形风道 |
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CN (1) | CN202074134U (zh) |
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2011
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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: INNER MONGOLIA ELECTRIC POWER SURVEY DESIGN INSTIT Free format text: FORMER NAME: INNER MONGOLIA ELECTRICAL POWER INVESTIGATE AND DESIGN INSTITUTE |
|
CP01 | Change in the name or title of a patent holder |
Address after: 010020 the Inner Mongolia Autonomous Region Hohhot City Xilin Road No. 209 Patentee after: INNER MONGOLIA ELECTRIC POWER SURVEY & DESIGN INSTITUTE CO., LTD. Address before: 010020 the Inner Mongolia Autonomous Region Hohhot City Xilin Road No. 209 Patentee before: Inner Mongolia Electric Power Survey Design Institute |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20200618 |
|
CF01 | Termination of patent right due to non-payment of annual fee |