JPS6289454U - - Google Patents

Info

Publication number

JPS6289454U

JPS6289454U JP18268485U JP18268485U JPS6289454U JP S6289454 U JPS6289454 U JP S6289454U JP 18268485 U JP18268485 U JP 18268485U JP 18268485 U JP18268485 U JP 18268485U JP S6289454 U JPS6289454 U JP S6289454U

Authority

JP

Japan

Prior art keywords

rod

threaded portion

upper rod

male threaded

screwed

Prior art date

1985-11-27

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

• 229910000831 Steel Inorganic materials 0.000 claims description 8
• 239000010959 steel Substances 0.000 claims description 8
• 238000010276 construction Methods 0.000 claims 2
• 238000005259 measurement Methods 0.000 claims 1
• 238000011328 necessary treatment Methods 0.000 claims 1
• 239000011800 void material Substances 0.000 claims 1
• 238000010586 diagram Methods 0.000 description 3
• 238000007796 conventional method Methods 0.000 description 1
• 238000012986 modification Methods 0.000 description 1
• 230000004048 modification Effects 0.000 description 1