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ES74582A1 - An improved microphone. - Google Patents

An improved microphone.

Info

Publication number
ES74582A1
ES74582A1 ES74582A ES74582A ES74582A1 ES 74582 A1 ES74582 A1 ES 74582A1 ES 74582 A ES74582 A ES 74582A ES 74582 A ES74582 A ES 74582A ES 74582 A1 ES74582 A1 ES 74582A1
Authority
ES
Spain
Prior art keywords
improved microphone
microphone
improved
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
ES74582A
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.)
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 ES74582A priority Critical patent/ES74582A1/en
Publication of ES74582A1 publication Critical patent/ES74582A1/en
Expired legal-status Critical Current

Links

ES74582A 1920-07-09 1920-07-09 An improved microphone. Expired ES74582A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES74582A ES74582A1 (en) 1920-07-09 1920-07-09 An improved microphone.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES74582A ES74582A1 (en) 1920-07-09 1920-07-09 An improved microphone.

Publications (1)

Publication Number Publication Date
ES74582A1 true ES74582A1 (en) 1920-11-01

Family

ID=64244596

Family Applications (1)

Application Number Title Priority Date Filing Date
ES74582A Expired ES74582A1 (en) 1920-07-09 1920-07-09 An improved microphone.

Country Status (1)

Country Link
ES (1) ES74582A1 (en)

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