TW349412U - Structure improvement for gas mask - Google Patents

Structure improvement for gas mask

Info

Publication number
TW349412U
TW349412U TW087206039U TW87206039U TW349412U TW 349412 U TW349412 U TW 349412U TW 087206039 U TW087206039 U TW 087206039U TW 87206039 U TW87206039 U TW 87206039U TW 349412 U TW349412 U TW 349412U
Authority
TW
Taiwan
Prior art keywords
structure improvement
gas mask
mask
gas
improvement
Prior art date
Application number
TW087206039U
Other languages
Chinese (zh)
Inventor
Tian-Lu He
Original Assignee
Tian-Lu He
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 Tian-Lu He filed Critical Tian-Lu He
Priority to TW087206039U priority Critical patent/TW349412U/en
Publication of TW349412U publication Critical patent/TW349412U/en
Priority to TW087206039U priority patent/TW428481U/en

Links

TW087206039U 1998-04-21 1998-04-21 Structure improvement for gas mask TW349412U (en)

Priority Applications (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

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW087206039U TW349412U (en) 1998-04-21 1998-04-21 Structure improvement for gas mask

Publications (1)

Publication Number Publication Date
TW349412U true TW349412U (en) 1999-01-01

Family

ID=55537252

Family Applications (1)

Application Number Title Priority Date Filing Date
TW087206039U TW349412U (en) 1998-04-21 1998-04-21 Structure improvement for gas mask

Country Status (1)

Country Link
TW (1) TW349412U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11877604B2 (en) 2007-05-03 2024-01-23 3M Innovative Properties Company Maintenance-free respirator that has concave portions on opposing sides of mask top section
US11904191B2 (en) 2007-05-03 2024-02-20 3M Innovative Properties Company Anti-fog respirator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11877604B2 (en) 2007-05-03 2024-01-23 3M Innovative Properties Company Maintenance-free respirator that has concave portions on opposing sides of mask top section
US11904191B2 (en) 2007-05-03 2024-02-20 3M Innovative Properties Company Anti-fog respirator

Similar Documents

Publication Publication Date Title
PL324570A1 (en) Gas range
GB9904168D0 (en) Gas valve
SG65073A1 (en) Mask
AU137823S (en) Mask cushion
GB9905593D0 (en) Diving mask
GB2343957B (en) Gas analyzer
AU137824S (en) Mask assembly
TW349412U (en) Structure improvement for gas mask
GB9908689D0 (en) Respirator
GB2333249B (en) Gas filtration
CZ111599A3 (en) Gas sparklets
GB2343752B (en) Gas detector
GB9904167D0 (en) Gas valve
TW360040U (en) Structure for cold-protection ear mask
IL126765A0 (en) Gas laser
TW350338U (en) Improvement of gas mask
GB2339701B (en) Masks
TW428481U (en) Improved structure of gas mask
GB9914978D0 (en) Gas turbine
TW377873U (en) Structure improvement for handbell
CA83682S (en) Nasal mask
TW313858U (en) Improved structure for electric-vented mouth mask
TW379773U (en) Improvement for stage structure
GB9815731D0 (en) Gas absorption
GB9816156D0 (en) Gas absorption

Legal Events

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