TW428481U - Improved structure of gas mask - Google Patents

Improved structure of gas mask

Info

Publication number
TW428481U
TW428481U TW087206039U TW87206039A01U TW428481U TW 428481 U TW428481 U TW 428481U TW 087206039 U TW087206039 U TW 087206039U TW 87206039A01 U TW87206039A01 U TW 87206039A01U TW 428481 U TW428481 U TW 428481U
Authority
TW
Taiwan
Prior art keywords
improved structure
gas mask
mask
gas
improved
Prior art date
Application number
TW087206039U
Other languages
Chinese (zh)
Inventor
Tian-Lu He
Original Assignee
He Tian Lu
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
Priority claimed from TW087206039U external-priority patent/TW349412U/en
Application filed by He Tian Lu filed Critical He Tian Lu
Priority to TW087206039U priority Critical patent/TW428481U/en
Publication of TW428481U publication Critical patent/TW428481U/en

Links

TW087206039U 1998-04-21 2000-08-15 Improved structure of gas mask TW428481U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW087206039U TW428481U (en) 1998-04-21 2000-08-15 Improved structure of gas mask

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW087206039U TW349412U (en) 1998-04-21 1998-04-21 Structure improvement for gas mask
TW087206039U TW428481U (en) 1998-04-21 2000-08-15 Improved structure of gas mask

Publications (1)

Publication Number Publication Date
TW428481U true TW428481U (en) 2001-04-01

Family

ID=21633542

Family Applications (1)

Application Number Title Priority Date Filing Date
TW087206039U TW428481U (en) 1998-04-21 2000-08-15 Improved structure of gas mask

Country Status (1)

Country Link
TW (1) TW428481U (en)

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Legal Events

Date Code Title Description
MM4K Annulment or lapse of a utility model due to non-payment of fees