JPS5036759B1 - - Google Patents

Info

Publication number
JPS5036759B1
JPS5036759B1 JP45042813A JP4281370A JPS5036759B1 JP S5036759 B1 JPS5036759 B1 JP S5036759B1 JP 45042813 A JP45042813 A JP 45042813A JP 4281370 A JP4281370 A JP 4281370A JP S5036759 B1 JPS5036759 B1 JP S5036759B1
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.)
Pending
Application number
JP45042813A
Other languages
Japanese (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
Publication of JPS5036759B1 publication Critical patent/JPS5036759B1/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
JP45042813A 1969-05-20 1970-05-20 Pending JPS5036759B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82622669A 1969-05-20 1969-05-20

Publications (1)

Publication Number Publication Date
JPS5036759B1 true JPS5036759B1 (enrdf_load_stackoverflow) 1975-11-27

Family

ID=25246022

Family Applications (1)

Application Number Title Priority Date Filing Date
JP45042813A Pending JPS5036759B1 (enrdf_load_stackoverflow) 1969-05-20 1970-05-20

Country Status (2)

Country Link
US (1) US3603985A (enrdf_load_stackoverflow)
JP (1) JPS5036759B1 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3707716A (en) * 1970-09-23 1972-12-26 Norman S Goralnick Multi-tone push button controlled electronic horn
US3749838A (en) * 1970-11-30 1973-07-31 J Juba Sound generating device for signaling and responding to nuisance telephone calls
GB1472451A (en) * 1973-06-12 1977-05-04 Int Standard Electric Corp Ultrasonic transmitter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS435605Y1 (enrdf_load_stackoverflow) * 1965-05-18 1968-03-12

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3493966A (en) * 1967-03-29 1970-02-03 Edwards Co Electronic audible alarm devices having plural oscillators
US3440648A (en) * 1968-05-09 1969-04-22 Mallory & Co Inc P R Integrated-circuit amplifier and oscillator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS435605Y1 (enrdf_load_stackoverflow) * 1965-05-18 1968-03-12

Also Published As

Publication number Publication date
US3603985A (en) 1971-09-07

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