JPS61129503U - - Google Patents

Info

Publication number

JPS61129503U

JPS61129503U JP1228285U JP1228285U JPS61129503U JP S61129503 U JPS61129503 U JP S61129503U JP 1228285 U JP1228285 U JP 1228285U JP 1228285 U JP1228285 U JP 1228285U JP S61129503 U JPS61129503 U JP S61129503U

Authority

JP

Japan

Prior art keywords

ventilation passage

whistle

heel part

outside

support hole

Prior art date

1985-01-31

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

Links

• Espacenet
• Global Dossier
• Discuss

• 238000009423 ventilation Methods 0.000 claims description 10
• 230000000903 blocking effect Effects 0.000 claims description 4
• 239000006261 foam material Substances 0.000 claims description 3
• 229920003002 synthetic resin Polymers 0.000 claims description 3
• 239000000057 synthetic resin Substances 0.000 claims description 3
• 230000002787 reinforcement Effects 0.000 description 1

Cited By (1)