AU619712B - Improvements inthe working of telegraph and telephone circuits andthe like - Google Patents

Improvements inthe working of telegraph and telephone circuits andthe like

Info

Publication number
AU619712B
AU619712B AU6197/12A AU619712A AU619712B AU 619712 B AU619712 B AU 619712B AU 6197/12 A AU6197/12 A AU 6197/12A AU 619712 A AU619712 A AU 619712A AU 619712 B AU619712 B AU 619712B
Authority
AU
Australia
Prior art keywords
telegraph
telephone circuits
improvements inthe
andthe
inthe working
Prior art date
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.)
Expired
Application number
AU6197/12A
Other versions
AU619712A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ernest Sydney Heartley
Original Assignee
Ernest Sydney Heartley
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 by Ernest Sydney Heartley filed Critical Ernest Sydney Heartley
Priority to AU6197/12A priority Critical patent/AU619712B/en
Publication of AU619712A publication Critical patent/AU619712A/en
Publication of AU619712B publication Critical patent/AU619712B/en
Expired legal-status Critical Current

Links

AU6197/12A 1911-09-20 1912-08-26 Improvements inthe working of telegraph and telephone circuits andthe like Expired AU619712B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU6197/12A AU619712B (en) 1911-09-20 1912-08-26 Improvements inthe working of telegraph and telephone circuits andthe like

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB191120787T 1911-09-20
AU6197/12A AU619712B (en) 1911-09-20 1912-08-26 Improvements inthe working of telegraph and telephone circuits andthe like

Publications (2)

Publication Number Publication Date
AU619712A AU619712A (en) 1912-09-21
AU619712B true AU619712B (en) 1912-09-21

Family

ID=61622881

Family Applications (1)

Application Number Title Priority Date Filing Date
AU6197/12A Expired AU619712B (en) 1911-09-20 1912-08-26 Improvements inthe working of telegraph and telephone circuits andthe like

Country Status (1)

Country Link
AU (1) AU619712B (en)

Similar Documents

Publication Publication Date Title
AU619712B (en) Improvements inthe working of telegraph and telephone circuits andthe like
AU619712A (en) Improvements inthe working of telegraph and telephone circuits andthe like
CA138269A (en) Tub and sink
GB191120787A (en) Improvements in the Working of Telegraph and Telephone Circuits and the like.
CA134170A (en) Telegraph and telephone
AU1900310B (en) Improvements in submarine telegraphy and telephony
FR12980E (en) Microphone and telephone receiver
CA135303A (en) Telephony and telegraphy
CA146019A (en) Tachytelegraph and teletype
FR417695A (en) Counter-recorder of telephone conversations and other similar uses
FR434603A (en) Multiple telephony and telegraphy
FR435781A (en) Adjustable self-induction cable for fast telegraphy and telephony
AU2005910B (en) Improvements in or relating to telephony and telegraphy
AU1900310A (en) Improvements in submarine telegraphy and telephony
FR510964A (en) Telegraphy and multiplex telephony
CA138231A (en) Telephone mouthpiece
CA138594A (en) Telephone
CA134394A (en) Desk telephone
CA134393A (en) Desk telephone
CH57407A (en) Telephone switchboard
CH65635A (en) Equipment on telephones for phonographic recording of the conversation between the calling party and the called party
CA161631A (en) Telephone call recorder
CH51010A (en) Entry isolator for telegraph and telephone lines
FR436383A (en) Telephone receiver
CA136189A (en) Telephone repeater