GB9805855D0 - Improvements in and relating to megaphones - Google Patents

Improvements in and relating to megaphones

Info

Publication number
GB9805855D0
GB9805855D0 GBGB9805855.5A GB9805855A GB9805855D0 GB 9805855 D0 GB9805855 D0 GB 9805855D0 GB 9805855 A GB9805855 A GB 9805855A GB 9805855 D0 GB9805855 D0 GB 9805855D0
Authority
GB
United Kingdom
Prior art keywords
megaphones
relating
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.)
Withdrawn
Application number
GBGB9805855.5A
Other versions
GB2335533A (en
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 GB9805855A priority Critical patent/GB2335533A/en
Publication of GB9805855D0 publication Critical patent/GB9805855D0/en
Publication of GB2335533A publication Critical patent/GB2335533A/en
Withdrawn legal-status Critical Current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
    • H04R27/00—Public address systems
    • H04R27/04—Electric megaphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
GB9805855A 1998-03-19 1998-03-19 Improvements in and relating to megaphones Withdrawn GB2335533A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9805855A GB2335533A (en) 1998-03-19 1998-03-19 Improvements in and relating to megaphones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9805855A GB2335533A (en) 1998-03-19 1998-03-19 Improvements in and relating to megaphones

Publications (2)

Publication Number Publication Date
GB9805855D0 true GB9805855D0 (en) 1998-05-13
GB2335533A GB2335533A (en) 1999-09-22

Family

ID=10828849

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9805855A Withdrawn GB2335533A (en) 1998-03-19 1998-03-19 Improvements in and relating to megaphones

Country Status (1)

Country Link
GB (1) GB2335533A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU770159B2 (en) * 2001-10-23 2004-02-12 Robert Leonard Carpenter Hands-free megaphone
WO2020212674A1 (en) * 2019-04-17 2020-10-22 Cerberus Black Ltd Acoustic apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095261A (en) * 1976-01-07 1978-06-13 Jesus Rodriguez Audio tape recorder, editor and amplifying system
JPS60119200A (en) * 1983-11-30 1985-06-26 Nec Home Electronics Ltd Portable speaker
DE69120602T2 (en) * 1990-05-14 1996-11-21 Gold Star Co., Ltd., Seoul/Soul Camera recorder

Also Published As

Publication number Publication date
GB2335533A (en) 1999-09-22

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)