JPS6421546U - - Google Patents

Info

Publication number

JPS6421546U

JPS6421546U JP11532887U JP11532887U JPS6421546U JP S6421546 U JPS6421546 U JP S6421546U JP 11532887 U JP11532887 U JP 11532887U JP 11532887 U JP11532887 U JP 11532887U JP S6421546 U JPS6421546 U JP S6421546U

Authority

JP

Japan

Prior art keywords

call

telephone

power outage

control section

detection means

Prior art date

1987-07-28

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

• 238000001514 detection method Methods 0.000 claims description 5
• 230000001276 controlling effect Effects 0.000 claims 1
• 230000001105 regulatory effect Effects 0.000 claims 1
• 238000010586 diagram Methods 0.000 description 2

Cited By (1)