JPS58179153U - マスク用排気弁装置 - Google Patents

マスク用排気弁装置

Info

Publication number
JPS58179153U
JPS58179153U JP7697382U JP7697382U JPS58179153U JP S58179153 U JPS58179153 U JP S58179153U JP 7697382 U JP7697382 U JP 7697382U JP 7697382 U JP7697382 U JP 7697382U JP S58179153 U JPS58179153 U JP S58179153U
Authority
JP
Japan
Prior art keywords
exhaust valve
valve device
masks
exhaust
mask
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP7697382U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0319892Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
善充 益子
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koken Ltd
Original Assignee
Koken Ltd
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 Koken Ltd filed Critical Koken Ltd
Priority to JP7697382U priority Critical patent/JPS58179153U/ja
Publication of JPS58179153U publication Critical patent/JPS58179153U/ja
Application granted granted Critical
Publication of JPH0319892Y2 publication Critical patent/JPH0319892Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Respiratory Apparatuses And Protective Means (AREA)
JP7697382U 1982-05-27 1982-05-27 マスク用排気弁装置 Granted JPS58179153U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7697382U JPS58179153U (ja) 1982-05-27 1982-05-27 マスク用排気弁装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7697382U JPS58179153U (ja) 1982-05-27 1982-05-27 マスク用排気弁装置

Publications (2)

Publication Number Publication Date
JPS58179153U true JPS58179153U (ja) 1983-11-30
JPH0319892Y2 JPH0319892Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1991-04-26

Family

ID=30086253

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7697382U Granted JPS58179153U (ja) 1982-05-27 1982-05-27 マスク用排気弁装置

Country Status (1)

Country Link
JP (1) JPS58179153U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
JPH0319892Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1991-04-26

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