JPS63106237U - - Google Patents

Info

Publication number

JPS63106237U

JPS63106237U JP1986202439U JP20243986U JPS63106237U JP S63106237 U JPS63106237 U JP S63106237U JP 1986202439 U JP1986202439 U JP 1986202439U JP 20243986 U JP20243986 U JP 20243986U JP S63106237 U JPS63106237 U JP S63106237U

Authority

JP

Japan

Prior art keywords

telephone line

output

handset

switch

changeover switch

Prior art date

1986-12-26

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 2
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