GB290943A - Improvements in or relating to telephonic receiving apparatus for the aid of the deaf - Google Patents

Improvements in or relating to telephonic receiving apparatus for the aid of the deaf

Info

Publication number
GB290943A
GB290943A GB1132/28A GB113228A GB290943A GB 290943 A GB290943 A GB 290943A GB 1132/28 A GB1132/28 A GB 1132/28A GB 113228 A GB113228 A GB 113228A GB 290943 A GB290943 A GB 290943A
Authority
GB
United Kingdom
Prior art keywords
deaf
relating
aid
receiving apparatus
telephonic
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
GB1132/28A
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
Priority to GB1132/28A priority Critical patent/GB290943A/en
Publication of GB290943A publication Critical patent/GB290943A/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
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Abstract

290,943. Smith, T. B. Jan. 12, 1928. Telephonic instruments for deaf persons; earpieces and attachments.-An ear tube E is connected to a telephone receiver A by means of a metal end piece F carrying a bored plug member G which has a divided spring J located in a groove I therein, the spring J being adapted to engage in the grooved or undercut hole C in the cover B of the receiver.
GB1132/28A 1928-01-12 1928-01-12 Improvements in or relating to telephonic receiving apparatus for the aid of the deaf Expired GB290943A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1132/28A GB290943A (en) 1928-01-12 1928-01-12 Improvements in or relating to telephonic receiving apparatus for the aid of the deaf

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1132/28A GB290943A (en) 1928-01-12 1928-01-12 Improvements in or relating to telephonic receiving apparatus for the aid of the deaf

Publications (1)

Publication Number Publication Date
GB290943A true GB290943A (en) 1928-05-24

Family

ID=9716710

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1132/28A Expired GB290943A (en) 1928-01-12 1928-01-12 Improvements in or relating to telephonic receiving apparatus for the aid of the deaf

Country Status (1)

Country Link
GB (1) GB290943A (en)

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