[go: up one dir, main page]

ES77305A1 - Improvements in circuitry devices for electric railways. - Google Patents

Improvements in circuitry devices for electric railways.

Info

Publication number
ES77305A1
ES77305A1 ES77305A ES77305A ES77305A1 ES 77305 A1 ES77305 A1 ES 77305A1 ES 77305 A ES77305 A ES 77305A ES 77305 A ES77305 A ES 77305A ES 77305 A1 ES77305 A1 ES 77305A1
Authority
ES
Spain
Prior art keywords
electric railways
circuitry devices
circuitry
devices
railways
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
ES77305A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to ES77305A priority Critical patent/ES77305A1/en
Publication of ES77305A1 publication Critical patent/ES77305A1/en
Expired legal-status Critical Current

Links

ES77305A 1921-03-07 1921-03-07 Improvements in circuitry devices for electric railways. Expired ES77305A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES77305A ES77305A1 (en) 1921-03-07 1921-03-07 Improvements in circuitry devices for electric railways.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES77305A ES77305A1 (en) 1921-03-07 1921-03-07 Improvements in circuitry devices for electric railways.

Publications (1)

Publication Number Publication Date
ES77305A1 true ES77305A1 (en) 1921-04-16

Family

ID=64247506

Family Applications (1)

Application Number Title Priority Date Filing Date
ES77305A Expired ES77305A1 (en) 1921-03-07 1921-03-07 Improvements in circuitry devices for electric railways.

Country Status (1)

Country Link
ES (1) ES77305A1 (en)

Similar Documents

Publication Publication Date Title
ES77305A1 (en) Improvements in circuitry devices for electric railways.
ES79777A1 (en) Improvements in heating devices for railway cars.
ES78301A3 (en) Improvements in electric heating devices.
ES75776A1 (en) Improvements in the regulation devices for railway traffic.
ES72914A1 (en) Improvements in the regulation systems for electric trains.
ES72915A1 (en) Improvements in the regulation systems for electric trains.
ES72930A1 (en) Improvements in the regulation systems for electric trains.
ES74141A1 (en) Improvements in the recording devices for correspondence.
ES79337A1 (en) Improvements in the apparatus to manufacture lithoponus.
ES77189A1 (en) Improvements in toothbrushes.
ES78850A1 (en) Improvements in protection devices for electrical systems.
ES79345A1 (en) Improvements in braking devices for vehicles.
ES78163A1 (en) Improvements in announcing devices.
ES80006A1 (en) Improvements in announcing devices.
ES77800A1 (en) Equipment for electric traction.
ES77381A1 (en) Improvements in the commutators-switches.
ES77314A1 (en) Improvements in lubricating devices.
ES78188A1 (en) Improvements in the electrical control of signals for railways.
ES91697A1 (en) Improvements in signaling devices for railways.
ES78115A1 (en) Sign for railways.
ES78646A1 (en) Electric locomotive.
ES79717A1 (en) Improvements introduced in the veils-mantillas.
ES79792A1 (en) Improvements in drive mechanisms for brakes and similar devices.
ES91870A1 (en) Improvements in electric welding devices.
ES77788A1 (en) Improvements in electric accumulators.