KR900017214U - 절첩식 발판사다리 - Google Patents

절첩식 발판사다리

Info

Publication number
KR900017214U
KR900017214U KR2019890002762U KR890002762U KR900017214U KR 900017214 U KR900017214 U KR 900017214U KR 2019890002762 U KR2019890002762 U KR 2019890002762U KR 890002762 U KR890002762 U KR 890002762U KR 900017214 U KR900017214 U KR 900017214U
Authority
KR
South Korea
Prior art keywords
folding step
step ladder
ladder
folding
Prior art date
Application number
KR2019890002762U
Other languages
English (en)
Other versions
KR910007348Y1 (ko
Inventor
유회관
Original Assignee
유회관
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 유회관 filed Critical 유회관
Priority to KR2019890002762U priority Critical patent/KR910007348Y1/ko
Publication of KR900017214U publication Critical patent/KR900017214U/ko
Application granted granted Critical
Publication of KR910007348Y1 publication Critical patent/KR910007348Y1/ko

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/387—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders having tip-up steps
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/39—Ladders having platforms; Ladders changeable into platforms
KR2019890002762U 1989-03-10 1989-03-10 절첩식 발판사다리 KR910007348Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019890002762U KR910007348Y1 (ko) 1989-03-10 1989-03-10 절첩식 발판사다리

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019890002762U KR910007348Y1 (ko) 1989-03-10 1989-03-10 절첩식 발판사다리

Publications (2)

Publication Number Publication Date
KR900017214U true KR900017214U (ko) 1990-10-05
KR910007348Y1 KR910007348Y1 (ko) 1991-09-25

Family

ID=19284322

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019890002762U KR910007348Y1 (ko) 1989-03-10 1989-03-10 절첩식 발판사다리

Country Status (1)

Country Link
KR (1) KR910007348Y1 (ko)

Also Published As

Publication number Publication date
KR910007348Y1 (ko) 1991-09-25

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Legal Events

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

Payment date: 19970922

Year of fee payment: 8

LAPS Lapse due to unpaid annual fee