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GB2256342B - Telephone handset - Google Patents

Telephone handset

Info

Publication number
GB2256342B
GB2256342B GB9209843A GB9209843A GB2256342B GB 2256342 B GB2256342 B GB 2256342B GB 9209843 A GB9209843 A GB 9209843A GB 9209843 A GB9209843 A GB 9209843A GB 2256342 B GB2256342 B GB 2256342B
Authority
GB
United Kingdom
Prior art keywords
telephone handset
handset
telephone
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 - Fee Related
Application number
GB9209843A
Other versions
GB9209843D0 (en
GB2256342A (en
Inventor
Robin Christopher Cross
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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 British Telecommunications PLC filed Critical British Telecommunications PLC
Publication of GB9209843D0 publication Critical patent/GB9209843D0/en
Publication of GB2256342A publication Critical patent/GB2256342A/en
Application granted granted Critical
Publication of GB2256342B publication Critical patent/GB2256342B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/20—Arrangements for preventing acoustic feed-back

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
GB9209843A 1991-05-08 1992-05-07 Telephone handset Expired - Fee Related GB2256342B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919109895A GB9109895D0 (en) 1991-05-08 1991-05-08 Telephone handset

Publications (3)

Publication Number Publication Date
GB9209843D0 GB9209843D0 (en) 1992-06-24
GB2256342A GB2256342A (en) 1992-12-02
GB2256342B true GB2256342B (en) 1994-11-30

Family

ID=10694604

Family Applications (2)

Application Number Title Priority Date Filing Date
GB919109895A Pending GB9109895D0 (en) 1991-05-08 1991-05-08 Telephone handset
GB9209843A Expired - Fee Related GB2256342B (en) 1991-05-08 1992-05-07 Telephone handset

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB919109895A Pending GB9109895D0 (en) 1991-05-08 1991-05-08 Telephone handset

Country Status (1)

Country Link
GB (2) GB9109895D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113365194B (en) * 2021-05-17 2023-03-28 北京京颐智科技有限公司 Loudspeaker assembly and electronic terminal equipment with same

Also Published As

Publication number Publication date
GB9209843D0 (en) 1992-06-24
GB2256342A (en) 1992-12-02
GB9109895D0 (en) 1991-07-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980507