GB191116955A - Transmitter for Telephones and other Sound Transmitting Instruments. - Google Patents

Transmitter for Telephones and other Sound Transmitting Instruments.

Info

Publication number
GB191116955A
GB191116955A GB191116955DA GB191116955A GB 191116955 A GB191116955 A GB 191116955A GB 191116955D A GB191116955D A GB 191116955DA GB 191116955 A GB191116955 A GB 191116955A
Authority
GB
United Kingdom
Prior art keywords
telephones
transmitter
electrodes
sound transmitting
microphones
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
Charles Robert Marks Edward
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.)
GEORGE ROGESTER WEBB
Original Assignee
GEORGE ROGESTER WEBB
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 GEORGE ROGESTER WEBB filed Critical GEORGE ROGESTER WEBB
Application granted granted Critical
Publication of GB191116955A publication Critical patent/GB191116955A/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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones
    • H04R21/023—Microphones with more than one granular chamber

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
GB191116955D 1911-07-24 1911-07-24 Transmitter for Telephones and other Sound Transmitting Instruments. Expired GB191116955A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191116955T 1911-07-24

Publications (1)

Publication Number Publication Date
GB191116955A true GB191116955A (en) 1912-05-30

Family

ID=34357432

Family Applications (2)

Application Number Title Priority Date Filing Date
GBJ16955D Active GB190916955A (enrdf_load_stackoverflow) 1911-07-24
GB191116955D Expired GB191116955A (en) 1911-07-24 1911-07-24 Transmitter for Telephones and other Sound Transmitting Instruments.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBJ16955D Active GB190916955A (enrdf_load_stackoverflow) 1911-07-24

Country Status (2)

Country Link
FR (1) FR433236A (enrdf_load_stackoverflow)
GB (2) GB191116955A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR433236A (fr) 1911-12-28
GB190916955A (enrdf_load_stackoverflow)

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