GB191117027A - Improvements in the Application of Radio-active Phenomena to Telephony. - Google Patents

Improvements in the Application of Radio-active Phenomena to Telephony.

Info

Publication number
GB191117027A
GB191117027A GB191117027DA GB191117027A GB 191117027 A GB191117027 A GB 191117027A GB 191117027D A GB191117027D A GB 191117027DA GB 191117027 A GB191117027 A GB 191117027A
Authority
GB
United Kingdom
Prior art keywords
radio
core
telephony
application
active
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
Other languages
English (en)
Inventor
Alexandre Vojen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB191117027A publication Critical patent/GB191117027A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet
    • H04R13/02—Telephone receivers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
GB191117027D 1910-08-30 1911-07-25 Improvements in the Application of Radio-active Phenomena to Telephony. Expired GB191117027A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE432560X 1910-08-30

Publications (1)

Publication Number Publication Date
GB191117027A true GB191117027A (en) 1912-07-25

Family

ID=32513499

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191117027D Expired GB191117027A (en) 1910-08-30 1911-07-25 Improvements in the Application of Radio-active Phenomena to Telephony.

Country Status (3)

Country Link
DE (1) DE259199C (https=)
FR (1) FR432560A (https=)
GB (1) GB191117027A (https=)

Also Published As

Publication number Publication date
FR432560A (fr) 1911-12-09
DE259199C (https=)

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