GB462224A - Improvements in or relating to electro-magnetic coils for loud speakers and telephone receivers - Google Patents

Improvements in or relating to electro-magnetic coils for loud speakers and telephone receivers

Info

Publication number
GB462224A
GB462224A GB15956/35A GB1595635A GB462224A GB 462224 A GB462224 A GB 462224A GB 15956/35 A GB15956/35 A GB 15956/35A GB 1595635 A GB1595635 A GB 1595635A GB 462224 A GB462224 A GB 462224A
Authority
GB
United Kingdom
Prior art keywords
electro
relating
telephone receivers
magnetic coils
loud speakers
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
GB15956/35A
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
Publication of GB462224A publication Critical patent/GB462224A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

462,224. Electric bells. STOLOJIAN, R. June 1, 1935, No. 15956. Convention date, Nov. 26, 1934. [Class 13] [Also in Group XXXIX] The Specification as open to inspection under Sect. 91 states that the invention which consists in forming the coils of telephone receivers of a number of wires connected in parallel, either as separate coils, multiple wires, or several wires wound one on the other, is also applicable to electric bells. This subject-matter does not appear in the Specification as accepted.
GB15956/35A 1934-11-26 1935-06-01 Improvements in or relating to electro-magnetic coils for loud speakers and telephone receivers Expired GB462224A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RO206043X 1934-11-26
CS477227X 1935-11-09

Publications (1)

Publication Number Publication Date
GB462224A true GB462224A (en) 1937-03-01

Family

ID=25746769

Family Applications (2)

Application Number Title Priority Date Filing Date
GB15956/35A Expired GB462224A (en) 1934-11-26 1935-06-01 Improvements in or relating to electro-magnetic coils for loud speakers and telephone receivers
GB30526/36A Expired GB477227A (en) 1934-11-26 1936-11-09 Improvements in and relating to electro-magnetic coils for loud-speakers and telephone receivers

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB30526/36A Expired GB477227A (en) 1934-11-26 1936-11-09 Improvements in and relating to electro-magnetic coils for loud-speakers and telephone receivers

Country Status (2)

Country Link
CH (1) CH206043A (en)
GB (2) GB462224A (en)

Also Published As

Publication number Publication date
CH206043A (en) 1939-07-15
GB477227A (en) 1937-12-24

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