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TW396834U - An improvement on the smokeproof mask - Google Patents

An improvement on the smokeproof mask

Info

Publication number
TW396834U
TW396834U TW87214292U TW87214292U TW396834U TW 396834 U TW396834 U TW 396834U TW 87214292 U TW87214292 U TW 87214292U TW 87214292 U TW87214292 U TW 87214292U TW 396834 U TW396834 U TW 396834U
Authority
TW
Taiwan
Prior art keywords
improvement
smokeproof
mask
smokeproof mask
Prior art date
Application number
TW87214292U
Other languages
Chinese (zh)
Inventor
Yu-Ching Shr
Original Assignee
Shr Yu Ching
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 Shr Yu Ching filed Critical Shr Yu Ching
Priority to TW87214292U priority Critical patent/TW396834U/en
Publication of TW396834U publication Critical patent/TW396834U/en

Links

TW87214292U 1998-08-31 1998-08-31 An improvement on the smokeproof mask TW396834U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW87214292U TW396834U (en) 1998-08-31 1998-08-31 An improvement on the smokeproof mask

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW87214292U TW396834U (en) 1998-08-31 1998-08-31 An improvement on the smokeproof mask

Publications (1)

Publication Number Publication Date
TW396834U true TW396834U (en) 2000-07-01

Family

ID=21635812

Family Applications (1)

Application Number Title Priority Date Filing Date
TW87214292U TW396834U (en) 1998-08-31 1998-08-31 An improvement on the smokeproof mask

Country Status (1)

Country Link
TW (1) TW396834U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI630012B (en) * 2013-01-29 2018-07-21 林淨植 Check valve and respirator with check valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI630012B (en) * 2013-01-29 2018-07-21 林淨植 Check valve and respirator with check valve

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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
GD4K Issue of patent certificate for granted utility model filed before june 30, 2004