ES65687A1 - Improvements in vacuum electrical devices, with incandescent cathodes. - Google Patents

Improvements in vacuum electrical devices, with incandescent cathodes.

Info

Publication number
ES65687A1
ES65687A1 ES65687A ES65687A ES65687A1 ES 65687 A1 ES65687 A1 ES 65687A1 ES 65687 A ES65687 A ES 65687A ES 65687 A ES65687 A ES 65687A ES 65687 A1 ES65687 A1 ES 65687A1
Authority
ES
Spain
Prior art keywords
electrical devices
vacuum electrical
incandescent cathodes
cathodes
incandescent
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
ES65687A
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.)
Compania Iberica de Telecomunicacion SA CITEL
Original Assignee
Compania Iberica de Telecomunicacion SA CITEL
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 Compania Iberica de Telecomunicacion SA CITEL filed Critical Compania Iberica de Telecomunicacion SA CITEL
Priority to ES65687A priority Critical patent/ES65687A1/en
Publication of ES65687A1 publication Critical patent/ES65687A1/en
Expired legal-status Critical Current

Links

ES65687A 1917-11-07 1917-11-07 Improvements in vacuum electrical devices, with incandescent cathodes. Expired ES65687A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES65687A ES65687A1 (en) 1917-11-07 1917-11-07 Improvements in vacuum electrical devices, with incandescent cathodes.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES65687A ES65687A1 (en) 1917-11-07 1917-11-07 Improvements in vacuum electrical devices, with incandescent cathodes.

Publications (1)

Publication Number Publication Date
ES65687A1 true ES65687A1 (en) 1917-12-01

Family

ID=64238241

Family Applications (1)

Application Number Title Priority Date Filing Date
ES65687A Expired ES65687A1 (en) 1917-11-07 1917-11-07 Improvements in vacuum electrical devices, with incandescent cathodes.

Country Status (1)

Country Link
ES (1) ES65687A1 (en)

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