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ES120000A1 - Improvements in the sound producing devices. - Google Patents

Improvements in the sound producing devices.

Info

Publication number
ES120000A1
ES120000A1 ES120000A ES120000A ES120000A1 ES 120000 A1 ES120000 A1 ES 120000A1 ES 120000 A ES120000 A ES 120000A ES 120000 A ES120000 A ES 120000A ES 120000 A1 ES120000 A1 ES 120000A1
Authority
ES
Spain
Prior art keywords
sound producing
producing devices
devices
sound
producing
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
ES120000A
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.)
Compagnie des Freins et Signaux Westinghouse SA
Original Assignee
Compagnie des Freins et Signaux Westinghouse SA
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 Compagnie des Freins et Signaux Westinghouse SA filed Critical Compagnie des Freins et Signaux Westinghouse SA
Priority to ES120000A priority Critical patent/ES120000A1/en
Publication of ES120000A1 publication Critical patent/ES120000A1/en
Expired legal-status Critical Current

Links

ES120000A 1930-09-30 1930-09-30 Improvements in the sound producing devices. Expired ES120000A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES120000A ES120000A1 (en) 1930-09-30 1930-09-30 Improvements in the sound producing devices.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES120000A ES120000A1 (en) 1930-09-30 1930-09-30 Improvements in the sound producing devices.

Publications (1)

Publication Number Publication Date
ES120000A1 true ES120000A1 (en) 1930-11-01

Family

ID=65566654

Family Applications (1)

Application Number Title Priority Date Filing Date
ES120000A Expired ES120000A1 (en) 1930-09-30 1930-09-30 Improvements in the sound producing devices.

Country Status (1)

Country Link
ES (1) ES120000A1 (en)

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