TW489932U - Improved structure of sound absorption column used in rolling iron door - Google Patents

Improved structure of sound absorption column used in rolling iron door

Info

Publication number
TW489932U
TW489932U TW90218733U TW90218733U TW489932U TW 489932 U TW489932 U TW 489932U TW 90218733 U TW90218733 U TW 90218733U TW 90218733 U TW90218733 U TW 90218733U TW 489932 U TW489932 U TW 489932U
Authority
TW
Taiwan
Prior art keywords
sound absorption
improved structure
absorption column
column used
iron door
Prior art date
Application number
TW90218733U
Other languages
Chinese (zh)
Inventor
Yu-Shu Peng
Original Assignee
Yu-Shu Peng
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 Yu-Shu Peng filed Critical Yu-Shu Peng
Priority to TW90218733U priority Critical patent/TW489932U/en
Publication of TW489932U publication Critical patent/TW489932U/en

Links

TW90218733U 2001-11-02 2001-11-02 Improved structure of sound absorption column used in rolling iron door TW489932U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW90218733U TW489932U (en) 2001-11-02 2001-11-02 Improved structure of sound absorption column used in rolling iron door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW90218733U TW489932U (en) 2001-11-02 2001-11-02 Improved structure of sound absorption column used in rolling iron door

Publications (1)

Publication Number Publication Date
TW489932U true TW489932U (en) 2002-06-01

Family

ID=21687162

Family Applications (1)

Application Number Title Priority Date Filing Date
TW90218733U TW489932U (en) 2001-11-02 2001-11-02 Improved structure of sound absorption column used in rolling iron door

Country Status (1)

Country Link
TW (1) TW489932U (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