[go: up one dir, main page]

ES84734A1 - Improvements in diaphragms for acoustic devices. - Google Patents

Improvements in diaphragms for acoustic devices.

Info

Publication number
ES84734A1
ES84734A1 ES84734A ES84734A ES84734A1 ES 84734 A1 ES84734 A1 ES 84734A1 ES 84734 A ES84734 A ES 84734A ES 84734 A ES84734 A ES 84734A ES 84734 A1 ES84734 A1 ES 84734A1
Authority
ES
Spain
Prior art keywords
diaphragms
acoustic devices
acoustic
devices
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
ES84734A
Other languages
Spanish (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.)
Parlophone Records Ltd
Original Assignee
Gramophone Co Ltd
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 Gramophone Co Ltd filed Critical Gramophone Co Ltd
Priority to ES84734A priority Critical patent/ES84734A1/en
Publication of ES84734A1 publication Critical patent/ES84734A1/en
Expired legal-status Critical Current

Links

ES84734A 1923-03-15 1923-03-15 Improvements in diaphragms for acoustic devices. Expired ES84734A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES84734A ES84734A1 (en) 1923-03-15 1923-03-15 Improvements in diaphragms for acoustic devices.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES84734A ES84734A1 (en) 1923-03-15 1923-03-15 Improvements in diaphragms for acoustic devices.

Publications (1)

Publication Number Publication Date
ES84734A1 true ES84734A1 (en) 1923-06-01

Family

ID=64251161

Family Applications (1)

Application Number Title Priority Date Filing Date
ES84734A Expired ES84734A1 (en) 1923-03-15 1923-03-15 Improvements in diaphragms for acoustic devices.

Country Status (1)

Country Link
ES (1) ES84734A1 (en)

Similar Documents

Publication Publication Date Title
ES84734A1 (en) Improvements in diaphragms for acoustic devices.
FR574642A (en) Advanced microphone
DK35191C (en) Membrane sound device.
FR566542A (en) Sounder
DK35985C (en) Microphone.
ES87765A1 (en) Improvements in the diaphragms for speaking machines.
ES85950A1 (en) Improvements in devices to produce sounds.
ES81345A1 (en) Improvements in diaphragms for sound reproduction devices.
DK33283C (en) Plovspore.
DK33319C (en) Kunststen.
DK33471C (en) Bistade.
DK33653C (en) Katøje.
DK34014C (en) Kamleje.
DK34161C (en) Motorplow.
DK34458C (en) Stenbor.
DK34547C (en) Møtriklaas.
DK34918C (en) Segloblat.
DK35279C (en) Segllak.
DK35414C (en) Pessarium.
DK35813C (en) Møtriklaas.
DK37024C (en) Valsemolle.
DK39231C (en) Radiogoniometer.
ES85580A1 (en) Table-Announcer.
ES87318A1 (en) Improvements in acoustic horns.
ES84459A1 (en) An oblique abdominal waist-girdle.