JPS6381988U - - Google Patents

Info

Publication number

JPS6381988U

JPS6381988U JP17319986U JP17319986U JPS6381988U JP S6381988 U JPS6381988 U JP S6381988U JP 17319986 U JP17319986 U JP 17319986U JP 17319986 U JP17319986 U JP 17319986U JP S6381988 U JPS6381988 U JP S6381988U

Authority

JP

Japan

Prior art keywords

wall portion

thick wall

end surface

top end

vertical

Prior art date

1986-11-11

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

• 238000003780 insertion Methods 0.000 claims description 2
• 230000037431 insertion Effects 0.000 claims description 2
• 230000002265 prevention Effects 0.000 claims 1
• 230000003014 reinforcing effect Effects 0.000 claims 1
• 238000010276 construction Methods 0.000 description 2
• 230000002787 reinforcement Effects 0.000 description 1

Cited By (1)