TW467045U - Ascending and descending machine for blackboard - Google Patents

Ascending and descending machine for blackboard

Info

Publication number
TW467045U
TW467045U TW89214345U TW89214345U TW467045U TW 467045 U TW467045 U TW 467045U TW 89214345 U TW89214345 U TW 89214345U TW 89214345 U TW89214345 U TW 89214345U TW 467045 U TW467045 U TW 467045U
Authority
TW
Taiwan
Prior art keywords
blackboard
ascending
descending machine
descending
machine
Prior art date
Application number
TW89214345U
Other languages
Chinese (zh)
Inventor
Li-Fu Chen
Original Assignee
Li-Fu Chen
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 Li-Fu Chen filed Critical Li-Fu Chen
Priority to TW89214345U priority Critical patent/TW467045U/en
Publication of TW467045U publication Critical patent/TW467045U/en

Links

TW89214345U 2000-08-18 2000-08-18 Ascending and descending machine for blackboard TW467045U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW89214345U TW467045U (en) 2000-08-18 2000-08-18 Ascending and descending machine for blackboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW89214345U TW467045U (en) 2000-08-18 2000-08-18 Ascending and descending machine for blackboard

Publications (1)

Publication Number Publication Date
TW467045U true TW467045U (en) 2001-12-01

Family

ID=21671742

Family Applications (1)

Application Number Title Priority Date Filing Date
TW89214345U TW467045U (en) 2000-08-18 2000-08-18 Ascending and descending machine for blackboard

Country Status (1)

Country Link
TW (1) TW467045U (en)

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Legal Events

Date Code Title Description
GD4K Issue of patent certificate for granted utility model filed before june 30, 2004
MM4K Annulment or lapse of a utility model due to non-payment of fees