JPS61109977U - - Google Patents

Info

Publication number

JPS61109977U

JPS61109977U JP19772084U JP19772084U JPS61109977U JP S61109977 U JPS61109977 U JP S61109977U JP 19772084 U JP19772084 U JP 19772084U JP 19772084 U JP19772084 U JP 19772084U JP S61109977 U JPS61109977 U JP S61109977U

Authority

JP

Japan

Prior art keywords

pipe

cylindrical body

insertion portion

circumferential surface

joint

Prior art date

1984-12-25

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

• 230000037431 insertion Effects 0.000 claims description 3
• 238000003780 insertion Methods 0.000 claims description 3
• 229910001296 Malleable iron Inorganic materials 0.000 claims 1
• 229920003002 synthetic resin Polymers 0.000 claims 1
• 239000000057 synthetic resin Substances 0.000 claims 1
• 230000002093 peripheral effect Effects 0.000 description 2