[go: up one dir, main page]

ES142444A1 - Improvements in telephone networks and their like. - Google Patents

Improvements in telephone networks and their like.

Info

Publication number
ES142444A1
ES142444A1 ES142444A ES142444A ES142444A1 ES 142444 A1 ES142444 A1 ES 142444A1 ES 142444 A ES142444 A ES 142444A ES 142444 A ES142444 A ES 142444A ES 142444 A1 ES142444 A1 ES 142444A1
Authority
ES
Spain
Prior art keywords
telephone networks
telephone
networks
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
ES142444A
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.)
AUTOMATIC ELECTRIC CO Ltd
Original Assignee
AUTOMATIC ELECTRIC 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 AUTOMATIC ELECTRIC CO Ltd filed Critical AUTOMATIC ELECTRIC CO Ltd
Priority to ES142444A priority Critical patent/ES142444A1/en
Publication of ES142444A1 publication Critical patent/ES142444A1/en
Expired legal-status Critical Current

Links

ES142444A 1936-05-30 1936-05-30 Improvements in telephone networks and their like. Expired ES142444A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES142444A ES142444A1 (en) 1936-05-30 1936-05-30 Improvements in telephone networks and their like.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES142444A ES142444A1 (en) 1936-05-30 1936-05-30 Improvements in telephone networks and their like.

Publications (1)

Publication Number Publication Date
ES142444A1 true ES142444A1 (en) 1936-09-01

Family

ID=65618102

Family Applications (1)

Application Number Title Priority Date Filing Date
ES142444A Expired ES142444A1 (en) 1936-05-30 1936-05-30 Improvements in telephone networks and their like.

Country Status (1)

Country Link
ES (1) ES142444A1 (en)

Similar Documents

Publication Publication Date Title
FR749076A (en) Microphone
ES142444A1 (en) Improvements in telephone networks and their like.
ES126011A1 (en) Improvements in the combined systems of telegraph and telephone exchanges.
ES126664A1 (en) Improvements in television sets and their like.
AT156098B (en) Telephone cables.
ES122431A1 (en) Improvements in microphones.
DK56772C (en) Telephone with ATM.
ES125253A1 (en) Improvements in television sets and their like.
DK55668C (en) Telephone handset.
DK55785C (en) Telephone handset.
ES124424A1 (en) Improvements in telephonic and similar transmission systems.
CH203270A (en) Voter rack in exchanges of telephone networks.
DK46277C (en) Telephone set.
ES116507A1 (en) Improvements in networks or telephone lines.
ES126962A1 (en) Improvements in radio-transmitters, radio-receivers, amplifiers and other similar devices.
ES121210A1 (en) Improvements in the cards and similar.
ES3404Y (en) Secafirmas and blotter
ES137704A1 (en) Improvements in the lapel microphones.
ES122354A1 (en) Improvements in the speakers.
ES123368A1 (en) Improvements in the speakers.
DK56913C (en) Telephone system.
ES119316A1 (en) Improvements in microphones.
ES125425A1 (en) Improvements in television sets and their like.
ES125427A1 (en) Improvements in television sets and their like.
FR728168A (en) Telephone amplifier