JPH0313348U - - Google Patents

Info

Publication number

JPH0313348U

JPH0313348U JP9753789U JP9753789U JPH0313348U JP H0313348 U JPH0313348 U JP H0313348U JP 9753789 U JP9753789 U JP 9753789U JP 9753789 U JP9753789 U JP 9753789U JP H0313348 U JPH0313348 U JP H0313348U

Authority

JP

Japan

Prior art keywords

cover

manhole

cylindrical

receiving member

opening

Prior art date

1989-06-22

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

• 230000002093 peripheral effect Effects 0.000 claims 1
• XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
• 238000007796 conventional method Methods 0.000 description 1
• 238000010586 diagram Methods 0.000 description 1
• 229910052742 iron Inorganic materials 0.000 description 1