JPH0446315U - - Google Patents

Info

Publication number

JPH0446315U

JPH0446315U JP8904490U JP8904490U JPH0446315U JP H0446315 U JPH0446315 U JP H0446315U JP 8904490 U JP8904490 U JP 8904490U JP 8904490 U JP8904490 U JP 8904490U JP H0446315 U JPH0446315 U JP H0446315U

Authority

JP

Japan

Prior art keywords

pattern

concave pattern

outer peripheral

peripheral surface

utility

Prior art date

1990-08-24

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

• 239000000919 ceramic Substances 0.000 claims description 2
• 230000002093 peripheral effect Effects 0.000 claims 1

Cited By (2)