KR920009197U - Perforation device of synthetic resin corrugated pipe - Google Patents

Perforation device of synthetic resin corrugated pipe

Info

Publication number
KR920009197U
KR920009197U KR2019900017804U KR900017804U KR920009197U KR 920009197 U KR920009197 U KR 920009197U KR 2019900017804 U KR2019900017804 U KR 2019900017804U KR 900017804 U KR900017804 U KR 900017804U KR 920009197 U KR920009197 U KR 920009197U
Authority
KR
South Korea
Prior art keywords
synthetic resin
corrugated pipe
perforation device
resin corrugated
perforation
Prior art date
Application number
KR2019900017804U
Other languages
Korean (ko)
Other versions
KR0123378Y1 (en
Inventor
민병이
Original Assignee
민병이
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 민병이 filed Critical 민병이
Priority to KR2019900017804U priority Critical patent/KR0123378Y1/en
Publication of KR920009197U publication Critical patent/KR920009197U/en
Application granted granted Critical
Publication of KR0123378Y1 publication Critical patent/KR0123378Y1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/18—Pleated or corrugated hoses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
KR2019900017804U 1990-11-20 1990-11-20 Boring apparatus for synthetic resin spiral pipe KR0123378Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019900017804U KR0123378Y1 (en) 1990-11-20 1990-11-20 Boring apparatus for synthetic resin spiral pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019900017804U KR0123378Y1 (en) 1990-11-20 1990-11-20 Boring apparatus for synthetic resin spiral pipe

Publications (2)

Publication Number Publication Date
KR920009197U true KR920009197U (en) 1992-06-16
KR0123378Y1 KR0123378Y1 (en) 1998-09-15

Family

ID=19305634

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019900017804U KR0123378Y1 (en) 1990-11-20 1990-11-20 Boring apparatus for synthetic resin spiral pipe

Country Status (1)

Country Link
KR (1) KR0123378Y1 (en)

Also Published As

Publication number Publication date
KR0123378Y1 (en) 1998-09-15

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 20010515

Year of fee payment: 4

LAPS Lapse due to unpaid annual fee