KR920008075U - 내압 합성수지 나선관 - Google Patents

내압 합성수지 나선관

Info

Publication number
KR920008075U
KR920008075U KR2019900015526U KR900015526U KR920008075U KR 920008075 U KR920008075 U KR 920008075U KR 2019900015526 U KR2019900015526 U KR 2019900015526U KR 900015526 U KR900015526 U KR 900015526U KR 920008075 U KR920008075 U KR 920008075U
Authority
KR
South Korea
Prior art keywords
synthetic resin
internal pressure
spiral tube
pressure synthetic
resin spiral
Prior art date
Application number
KR2019900015526U
Other languages
English (en)
Other versions
KR920006731Y1 (ko
Inventor
이주형
김홍기
Original Assignee
이주형
김홍기
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 이주형, 김홍기 filed Critical 이주형
Priority to KR2019900015526U priority Critical patent/KR920006731Y1/ko
Publication of KR920008075U publication Critical patent/KR920008075U/ko
Application granted granted Critical
Publication of KR920006731Y1 publication Critical patent/KR920006731Y1/ko

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
    • F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
KR2019900015526U 1990-10-10 1990-10-10 내압 합성수지 나선관 KR920006731Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019900015526U KR920006731Y1 (ko) 1990-10-10 1990-10-10 내압 합성수지 나선관

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019900015526U KR920006731Y1 (ko) 1990-10-10 1990-10-10 내압 합성수지 나선관

Publications (2)

Publication Number Publication Date
KR920008075U true KR920008075U (ko) 1992-05-19
KR920006731Y1 KR920006731Y1 (ko) 1992-09-26

Family

ID=19304149

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019900015526U KR920006731Y1 (ko) 1990-10-10 1990-10-10 내압 합성수지 나선관

Country Status (1)

Country Link
KR (1) KR920006731Y1 (ko)

Also Published As

Publication number Publication date
KR920006731Y1 (ko) 1992-09-26

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Legal Events

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O032 Opposition [utility model]: request for opposition
REGI Registration of establishment
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Payment date: 20040923

Year of fee payment: 13

EXPY Expiration of term