JPH0184621U - - Google Patents

Info

Publication number

JPH0184621U

JPH0184621U JP1987178856U JP17885687U JPH0184621U JP H0184621 U JPH0184621 U JP H0184621U JP 1987178856 U JP1987178856 U JP 1987178856U JP 17885687 U JP17885687 U JP 17885687U JP H0184621 U JPH0184621 U JP H0184621U

Authority

JP

Japan

Prior art keywords

detection means

visually impaired

impaired person

signal

flat plate

Prior art date

1987-11-26

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

• 238000001514 detection method Methods 0.000 claims description 6
• 230000001771 impaired effect Effects 0.000 claims description 6
• 230000035807 sensation Effects 0.000 claims 1
• 230000000007 visual effect Effects 0.000 claims 1
• 238000010586 diagram Methods 0.000 description 2

Cited By (1)