GB2106748B - Telephone transducers - Google Patents

Telephone transducers

Info

Publication number
GB2106748B
GB2106748B GB08225829A GB8225829A GB2106748B GB 2106748 B GB2106748 B GB 2106748B GB 08225829 A GB08225829 A GB 08225829A GB 8225829 A GB8225829 A GB 8225829A GB 2106748 B GB2106748 B GB 2106748B
Authority
GB
United Kingdom
Prior art keywords
transducers
telephone
telephone transducers
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
GB08225829A
Other versions
GB2106748A (en
Inventor
David Valentine Charlesworth
Derek Frederick Smith
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.)
AP Besson Ltd
Original Assignee
AP Besson Ltd
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 AP Besson Ltd filed Critical AP Besson Ltd
Priority to GB08225829A priority Critical patent/GB2106748B/en
Publication of GB2106748A publication Critical patent/GB2106748A/en
Application granted granted Critical
Publication of GB2106748B publication Critical patent/GB2106748B/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
    • H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
GB08225829A 1981-09-16 1982-09-10 Telephone transducers Expired GB2106748B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08225829A GB2106748B (en) 1981-09-16 1982-09-10 Telephone transducers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8127961 1981-09-16
GB08225829A GB2106748B (en) 1981-09-16 1982-09-10 Telephone transducers

Publications (2)

Publication Number Publication Date
GB2106748A GB2106748A (en) 1983-04-13
GB2106748B true GB2106748B (en) 1985-03-06

Family

ID=26280721

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08225829A Expired GB2106748B (en) 1981-09-16 1982-09-10 Telephone transducers

Country Status (1)

Country Link
GB (1) GB2106748B (en)

Also Published As

Publication number Publication date
GB2106748A (en) 1983-04-13

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010910