JPS641794U - - Google Patents

Info

Publication number

JPS641794U

JPS641794U JP9640687U JP9640687U JPS641794U JP S641794 U JPS641794 U JP S641794U JP 9640687 U JP9640687 U JP 9640687U JP 9640687 U JP9640687 U JP 9640687U JP S641794 U JPS641794 U JP S641794U

Authority

JP

Japan

Prior art keywords

septic tank

manholes

axial direction

main body

buried underground

Prior art date

1987-06-23

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

• 229910000831 Steel Inorganic materials 0.000 description 1
• 230000003014 reinforcing effect Effects 0.000 description 1
• 239000010959 steel Substances 0.000 description 1