TW494759U - Improved structure of mask - Google Patents

Improved structure of mask

Info

Publication number
TW494759U
TW494759U TW90202738U TW90202738U TW494759U TW 494759 U TW494759 U TW 494759U TW 90202738 U TW90202738 U TW 90202738U TW 90202738 U TW90202738 U TW 90202738U TW 494759 U TW494759 U TW 494759U
Authority
TW
Taiwan
Prior art keywords
mask
improved structure
improved
Prior art date
Application number
TW90202738U
Other languages
Chinese (zh)
Inventor
Han-Yung Tsai
Original Assignee
Han-Yung Tsai
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 Han-Yung Tsai filed Critical Han-Yung Tsai
Priority to TW90202738U priority Critical patent/TW494759U/en
Publication of TW494759U publication Critical patent/TW494759U/en

Links

TW90202738U 2001-02-23 2001-02-23 Improved structure of mask TW494759U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW90202738U TW494759U (en) 2001-02-23 2001-02-23 Improved structure of mask

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW90202738U TW494759U (en) 2001-02-23 2001-02-23 Improved structure of mask

Publications (1)

Publication Number Publication Date
TW494759U true TW494759U (en) 2002-07-11

Family

ID=21681517

Family Applications (1)

Application Number Title Priority Date Filing Date
TW90202738U TW494759U (en) 2001-02-23 2001-02-23 Improved structure of mask

Country Status (1)

Country Link
TW (1) TW494759U (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