JPS6388719U - - Google Patents

Info

Publication number

JPS6388719U

JPS6388719U JP18321886U JP18321886U JPS6388719U JP S6388719 U JPS6388719 U JP S6388719U JP 18321886 U JP18321886 U JP 18321886U JP 18321886 U JP18321886 U JP 18321886U JP S6388719 U JPS6388719 U JP S6388719U

Authority

JP

Japan

Prior art keywords

oil

small grooves

utility

model registration

level gauge

Prior art date

1986-11-28

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

• 230000014759 maintenance of location Effects 0.000 claims description 6
• 238000001514 detection method Methods 0.000 claims description 2