JPS61132880U - - Google Patents

Info

Publication number

JPS61132880U

JPS61132880U JP1547985U JP1547985U JPS61132880U JP S61132880 U JPS61132880 U JP S61132880U JP 1547985 U JP1547985 U JP 1547985U JP 1547985 U JP1547985 U JP 1547985U JP S61132880 U JPS61132880 U JP S61132880U

Authority

JP

Japan

Prior art keywords

minute

nameplate

convex lens

visual recognition

nameplates

Prior art date

1985-02-06

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

• 230000000007 visual effect Effects 0.000 claims 3
• 125000006850 spacer group Chemical group 0.000 description 1

Cited By (2)