JPH0412737U - - Google Patents

Info

Publication number

JPH0412737U

JPH0412737U JP5235990U JP5235990U JPH0412737U JP H0412737 U JPH0412737 U JP H0412737U JP 5235990 U JP5235990 U JP 5235990U JP 5235990 U JP5235990 U JP 5235990U JP H0412737 U JPH0412737 U JP H0412737U

Authority

JP

Japan

Prior art keywords

hook

call

detecting

detection means

station

Prior art date

1990-05-18

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
• 230000015572 biosynthetic process Effects 0.000 description 3
• 238000010586 diagram Methods 0.000 description 3
• 238000003786 synthesis reaction Methods 0.000 description 3