ES130609A1 - Improvements in sound receiving devices. - Google Patents

Improvements in sound receiving devices.

Info

Publication number
ES130609A1
ES130609A1 ES130609A ES130609A ES130609A1 ES 130609 A1 ES130609 A1 ES 130609A1 ES 130609 A ES130609 A ES 130609A ES 130609 A ES130609 A ES 130609A ES 130609 A1 ES130609 A1 ES 130609A1
Authority
ES
Spain
Prior art keywords
receiving devices
sound receiving
sound
devices
receiving
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
ES130609A
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.)
RCA Corp
Original Assignee
Radio Corporation of America
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 Radio Corporation of America filed Critical Radio Corporation of America
Priority to ES130609A priority Critical patent/ES130609A1/en
Publication of ES130609A1 publication Critical patent/ES130609A1/en
Expired legal-status Critical Current

Links

ES130609A 1933-05-11 1933-05-11 Improvements in sound receiving devices. Expired ES130609A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES130609A ES130609A1 (en) 1933-05-11 1933-05-11 Improvements in sound receiving devices.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES130609A ES130609A1 (en) 1933-05-11 1933-05-11 Improvements in sound receiving devices.

Publications (1)

Publication Number Publication Date
ES130609A1 true ES130609A1 (en) 1933-07-01

Family

ID=65586926

Family Applications (1)

Application Number Title Priority Date Filing Date
ES130609A Expired ES130609A1 (en) 1933-05-11 1933-05-11 Improvements in sound receiving devices.

Country Status (1)

Country Link
ES (1) ES130609A1 (en)

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