HK1141932A2 - Penetration and convection pipe device for drainage and irrigation - Google Patents

Penetration and convection pipe device for drainage and irrigation

Info

Publication number
HK1141932A2
HK1141932A2 HK10104261A HK10104261A HK1141932A2 HK 1141932 A2 HK1141932 A2 HK 1141932A2 HK 10104261 A HK10104261 A HK 10104261A HK 10104261 A HK10104261 A HK 10104261A HK 1141932 A2 HK1141932 A2 HK 1141932A2
Authority
HK
Hong Kong
Prior art keywords
irrigation
drainage
penetration
pipe device
convection pipe
Prior art date
Application number
HK10104261A
Inventor
Chung Yau Cheung
Original Assignee
Chung Yau Cheung
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 Chung Yau Cheung filed Critical Chung Yau Cheung
Priority to HK10104261A priority Critical patent/HK1141932A2/en
Publication of HK1141932A2 publication Critical patent/HK1141932A2/en

Links

HK10104261A 2010-04-29 2010-04-29 Penetration and convection pipe device for drainage and irrigation HK1141932A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HK10104261A HK1141932A2 (en) 2010-04-29 2010-04-29 Penetration and convection pipe device for drainage and irrigation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HK10104261A HK1141932A2 (en) 2010-04-29 2010-04-29 Penetration and convection pipe device for drainage and irrigation

Publications (1)

Publication Number Publication Date
HK1141932A2 true HK1141932A2 (en) 2010-11-19

Family

ID=43216646

Family Applications (1)

Application Number Title Priority Date Filing Date
HK10104261A HK1141932A2 (en) 2010-04-29 2010-04-29 Penetration and convection pipe device for drainage and irrigation

Country Status (1)

Country Link
HK (1) HK1141932A2 (en)

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Legal Events

Date Code Title Description
PEU Short-term patents expired

Effective date: 20180428