ES38730U - Megáfono portátil - Google Patents

Megáfono portátil

Info

Publication number
ES38730U
ES38730U ES0038730U ES38730U ES38730U ES 38730 U ES38730 U ES 38730U ES 0038730 U ES0038730 U ES 0038730U ES 38730 U ES38730 U ES 38730U ES 38730 U ES38730 U ES 38730U
Authority
ES
Spain
Prior art keywords
translation
machine
legally binding
google translate
portable megaphone
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.)
Granted
Application number
ES0038730U
Other languages
English (en)
Other versions
ES38730Y (es
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 ES0038730U priority Critical patent/ES38730Y/es
Publication of ES38730U publication Critical patent/ES38730U/es
Application granted granted Critical
Publication of ES38730Y publication Critical patent/ES38730Y/es
Expired legal-status Critical Current

Links

Landscapes

  • Basic Packing Technique (AREA)
  • Auxiliary Devices For Music (AREA)
  • Package Frames And Binding Bands (AREA)

Abstract

Megáfono portátil, caracterizado por comprender un cono apto para vibrar montado en el interior de una trompeta o bocina adecuada, cuyo cono está conectado con una cinta de material flexible semiconductor mantenida tirante y en contacto rozante con la periferia de un tambor de fricción accionable con velocidad variable, estando dicha cinta y tambor de fricción conectados a respectivos extremos del secundario de un transformador que tiene el primario conectado en serie con una fuente de energía eléctrica y un micrófono conectados en serie.
ES0038730U 1953-10-22 1953-10-22 Megáfono portátil Expired ES38730Y (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES0038730U ES38730Y (es) 1953-10-22 1953-10-22 Megáfono portátil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES0038730U ES38730Y (es) 1953-10-22 1953-10-22 Megáfono portátil

Publications (2)

Publication Number Publication Date
ES38730U true ES38730U (es) 1953-11-16
ES38730Y ES38730Y (es) 1955-01-01

Family

ID=51102122

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0038730U Expired ES38730Y (es) 1953-10-22 1953-10-22 Megáfono portátil

Country Status (1)

Country Link
ES (1) ES38730Y (es)

Also Published As

Publication number Publication date
ES38730Y (es) 1955-01-01

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