JPS6374937U - - Google Patents

Info

Publication number

JPS6374937U

JPS6374937U JP16455986U JP16455986U JPS6374937U JP S6374937 U JPS6374937 U JP S6374937U JP 16455986 U JP16455986 U JP 16455986U JP 16455986 U JP16455986 U JP 16455986U JP S6374937 U JPS6374937 U JP S6374937U

Authority

JP

Japan

Prior art keywords

mushroom

closing device

end opening

inner lid

ventilation tube

Prior art date

1986-10-27

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.)

Pending

Links

• Espacenet
• Global Dossier
• Discuss

• 238000009423 ventilation Methods 0.000 claims 2
• 230000004048 modification Effects 0.000 description 3
• 238000012986 modification Methods 0.000 description 3