JPS4896178A - - Google Patents

Info

Publication number
JPS4896178A
JPS4896178A JP3001772A JP3001772A JPS4896178A JP S4896178 A JPS4896178 A JP S4896178A JP 3001772 A JP3001772 A JP 3001772A JP 3001772 A JP3001772 A JP 3001772A JP S4896178 A JPS4896178 A JP S4896178A
Authority
JP
Japan
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.)
Granted
Application number
JP3001772A
Other versions
JPS5644637B2 (ja
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP3001772A priority Critical patent/JPS5644637B2/ja
Publication of JPS4896178A publication Critical patent/JPS4896178A/ja
Publication of JPS5644637B2 publication Critical patent/JPS5644637B2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Emergency Alarm Devices (AREA)
  • Circuit For Audible Band Transducer (AREA)
JP3001772A 1972-03-24 1972-03-24 Expired JPS5644637B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3001772A JPS5644637B2 (ja) 1972-03-24 1972-03-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3001772A JPS5644637B2 (ja) 1972-03-24 1972-03-24

Publications (2)

Publication Number Publication Date
JPS4896178A true JPS4896178A (ja) 1973-12-08
JPS5644637B2 JPS5644637B2 (ja) 1981-10-21

Family

ID=12292068

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3001772A Expired JPS5644637B2 (ja) 1972-03-24 1972-03-24

Country Status (1)

Country Link
JP (1) JPS5644637B2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01158899A (ja) * 1987-12-15 1989-06-21 Hokuriyou Denko Kk 音響放送システム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01158899A (ja) * 1987-12-15 1989-06-21 Hokuriyou Denko Kk 音響放送システム

Also Published As

Publication number Publication date
JPS5644637B2 (ja) 1981-10-21

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