ES72830A1 - Improvements in telephone transmitters. - Google Patents

Improvements in telephone transmitters.

Info

Publication number
ES72830A1
ES72830A1 ES72830A ES72830A ES72830A1 ES 72830 A1 ES72830 A1 ES 72830A1 ES 72830 A ES72830 A ES 72830A ES 72830 A ES72830 A ES 72830A ES 72830 A1 ES72830 A1 ES 72830A1
Authority
ES
Spain
Prior art keywords
telephone transmitters
transmitters
telephone
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
ES72830A
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph 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 Marconis Wireless Telegraph Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to ES72830A priority Critical patent/ES72830A1/en
Publication of ES72830A1 publication Critical patent/ES72830A1/en
Expired legal-status Critical Current

Links

ES72830A 1920-03-03 1920-03-03 Improvements in telephone transmitters. Expired ES72830A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES72830A ES72830A1 (en) 1920-03-03 1920-03-03 Improvements in telephone transmitters.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES72830A ES72830A1 (en) 1920-03-03 1920-03-03 Improvements in telephone transmitters.

Publications (1)

Publication Number Publication Date
ES72830A1 true ES72830A1 (en) 1920-05-25

Family

ID=64243745

Family Applications (1)

Application Number Title Priority Date Filing Date
ES72830A Expired ES72830A1 (en) 1920-03-03 1920-03-03 Improvements in telephone transmitters.

Country Status (1)

Country Link
ES (1) ES72830A1 (en)

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