FR617318A - Electrical and wireless signal transmission device - Google Patents

Electrical and wireless signal transmission device

Info

Publication number: FR617318A
Authority: FR; France
Prior art keywords: electrical; transmission device; signal transmission; wireless signal; wireless
Prior art date: 1925-10-28
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

Other languages

Inventor

Pierre Mevel

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.)

1925-10-28

Filing date

1925-10-28

Publication date

1927-02-17

1925-10-28 Application filed filed Critical

1927-02-17 Application granted granted Critical

1927-02-17 Publication of FR617318A publication Critical patent/FR617318A/en

Status Expired legal-status Critical Current

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
- B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
- B61L3/08—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically
- B61L3/12—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves
- B61L3/121—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves using magnetic induction

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)

FR617318D 1925-10-28 1925-10-28 Electrical and wireless signal transmission device Expired FR617318A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR617318T		1925-10-28

Publications (1)

Publication Number	Publication Date
FR617318A true FR617318A (en)	1927-02-17

Family

ID=8982218

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR617318D Expired FR617318A (en)	1925-10-28	1925-10-28	Electrical and wireless signal transmission device

Country Status (1)

Country	Link
FR (1)	FR617318A (en)

1925
- 1925-10-28 FR FR617318D patent/FR617318A/en not_active Expired

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