JPS61166025U - - Google Patents

Info

Publication number

JPS61166025U

JPS61166025U JP5008585U JP5008585U JPS61166025U JP S61166025 U JPS61166025 U JP S61166025U JP 5008585 U JP5008585 U JP 5008585U JP 5008585 U JP5008585 U JP 5008585U JP S61166025 U JPS61166025 U JP S61166025U

Authority

JP

Japan

Prior art keywords

tread surface

particles

convexities

stairs

depressions

Prior art date

1985-04-04

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

• 239000002245 particle Substances 0.000 claims description 4
• 229910052500 inorganic mineral Inorganic materials 0.000 claims 1
• 239000002923 metal particle Substances 0.000 claims 1
• 239000011707 mineral Substances 0.000 claims 1
• 239000003082 abrasive agent Substances 0.000 description 1
• 238000010586 diagram Methods 0.000 description 1
• 239000010433 feldspar Substances 0.000 description 1
• 238000004519 manufacturing process Methods 0.000 description 1

Cited By (1)