HK1062771A2 - Apparatus for preventing backflow - Google Patents

Apparatus for preventing backflow

Info

Publication number
HK1062771A2
HK1062771A2 HK03105753A HK03105753A HK1062771A2 HK 1062771 A2 HK1062771 A2 HK 1062771A2 HK 03105753 A HK03105753 A HK 03105753A HK 03105753 A HK03105753 A HK 03105753A HK 1062771 A2 HK1062771 A2 HK 1062771A2
Authority
HK
Hong Kong
Prior art keywords
preventing backflow
backflow
preventing
Prior art date
Application number
HK03105753A
Inventor
Wai Kwan Woo
Original Assignee
Wai Kwan Woo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wai Kwan Woo filed Critical Wai Kwan Woo
Priority to HK03105753A priority Critical patent/HK1062771A2/en
Priority to PCT/CN2004/000930 priority patent/WO2005014942A1/en
Publication of HK1062771A2 publication Critical patent/HK1062771A2/en

Links

HK03105753A 2003-08-12 2003-08-12 Apparatus for preventing backflow HK1062771A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
HK03105753A HK1062771A2 (en) 2003-08-12 2003-08-12 Apparatus for preventing backflow
PCT/CN2004/000930 WO2005014942A1 (en) 2003-08-12 2004-08-11 Backflow preventing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HK03105753A HK1062771A2 (en) 2003-08-12 2003-08-12 Apparatus for preventing backflow

Publications (1)

Publication Number Publication Date
HK1062771A2 true HK1062771A2 (en) 2004-10-29

Family

ID=34044118

Family Applications (1)

Application Number Title Priority Date Filing Date
HK03105753A HK1062771A2 (en) 2003-08-12 2003-08-12 Apparatus for preventing backflow

Country Status (1)

Country Link
HK (1) HK1062771A2 (en)

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Legal Events

Date Code Title Description
PF Patent in force
PEU Short-term patents expired

Effective date: 20110811