JPH0736668Y2 - 半面マスク - Google Patents

半面マスク

Info

Publication number
JPH0736668Y2
JPH0736668Y2 JP1989055128U JP5512889U JPH0736668Y2 JP H0736668 Y2 JPH0736668 Y2 JP H0736668Y2 JP 1989055128 U JP1989055128 U JP 1989055128U JP 5512889 U JP5512889 U JP 5512889U JP H0736668 Y2 JPH0736668 Y2 JP H0736668Y2
Authority
JP
Japan
Prior art keywords
filter
holding frame
airtight
nose cup
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.)
Expired - Lifetime
Application number
JP1989055128U
Other languages
English (en)
Japanese (ja)
Other versions
JPH02147142U (enrdf_load_stackoverflow
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 JP1989055128U priority Critical patent/JPH0736668Y2/ja
Publication of JPH02147142U publication Critical patent/JPH02147142U/ja
Application granted granted Critical
Publication of JPH0736668Y2 publication Critical patent/JPH0736668Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Respiratory Apparatuses And Protective Means (AREA)
JP1989055128U 1989-05-12 1989-05-12 半面マスク Expired - Lifetime JPH0736668Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989055128U JPH0736668Y2 (ja) 1989-05-12 1989-05-12 半面マスク

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989055128U JPH0736668Y2 (ja) 1989-05-12 1989-05-12 半面マスク

Publications (2)

Publication Number Publication Date
JPH02147142U JPH02147142U (enrdf_load_stackoverflow) 1990-12-13
JPH0736668Y2 true JPH0736668Y2 (ja) 1995-08-23

Family

ID=31577806

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989055128U Expired - Lifetime JPH0736668Y2 (ja) 1989-05-12 1989-05-12 半面マスク

Country Status (1)

Country Link
JP (1) JPH0736668Y2 (enrdf_load_stackoverflow)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0432116Y2 (enrdf_load_stackoverflow) * 1986-12-03 1992-07-31

Also Published As

Publication number Publication date
JPH02147142U (enrdf_load_stackoverflow) 1990-12-13

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term