JPS63160820U - - Google Patents

Info

Publication number
JPS63160820U
JPS63160820U JP5211287U JP5211287U JPS63160820U JP S63160820 U JPS63160820 U JP S63160820U JP 5211287 U JP5211287 U JP 5211287U JP 5211287 U JP5211287 U JP 5211287U JP S63160820 U JPS63160820 U JP S63160820U
Authority
JP
Japan
Prior art keywords
recess
mask
protruding parts
oval
throat
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
JP5211287U
Other languages
English (en)
Japanese (ja)
Other versions
JPH032268Y2 (enrdf_load_stackoverflow
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 filed Critical
Priority to JP5211287U priority Critical patent/JPH032268Y2/ja
Publication of JPS63160820U publication Critical patent/JPS63160820U/ja
Application granted granted Critical
Publication of JPH032268Y2 publication Critical patent/JPH032268Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Respiratory Apparatuses And Protective Means (AREA)
JP5211287U 1987-04-08 1987-04-08 Expired JPH032268Y2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5211287U JPH032268Y2 (enrdf_load_stackoverflow) 1987-04-08 1987-04-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5211287U JPH032268Y2 (enrdf_load_stackoverflow) 1987-04-08 1987-04-08

Publications (2)

Publication Number Publication Date
JPS63160820U true JPS63160820U (enrdf_load_stackoverflow) 1988-10-20
JPH032268Y2 JPH032268Y2 (enrdf_load_stackoverflow) 1991-01-22

Family

ID=30876992

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5211287U Expired JPH032268Y2 (enrdf_load_stackoverflow) 1987-04-08 1987-04-08

Country Status (1)

Country Link
JP (1) JPH032268Y2 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH032268Y2 (enrdf_load_stackoverflow) 1991-01-22

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