NL89644C - - Google Patents

Info

Publication number: NL89644C
Authority: NL; Netherlands

Application number

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.)

1952-03-04

Publication of NL89644C publication Critical patent/NL89644C/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
- G08C19/16—Electric signal transmission systems in which transmission is by pulses
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Computer Networks & Wireless Communication (AREA)
Electromagnetism (AREA)
General Physics & Mathematics (AREA)
Signal Processing (AREA)

NL89644D 1952-03-04 NL89644C (mo)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR1052056T		1952-03-04

Publications (1)

Publication Number	Publication Date
NL89644C true NL89644C (mo)

Family

ID=9595063

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
NL7700447B NL169510B (nl)	1952-03-04		Inrichting voor het sturen van een via leidingen door een pomp gevoede servomotor.
NL89644D NL89644C (mo)	1952-03-04

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
NL7700447B NL169510B (nl)	1952-03-04		Inrichting voor het sturen van een via leidingen door een pomp gevoede servomotor.

Country Status (4)

Country	Link
CH (1)	CH308383A (mo)
FR (3)	FR1052054A (mo)
IT (1)	IT500077A (mo)
NL (2)	NL89644C (mo)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL270678A (mo) *	1960-10-29
US3529105A (en) *	1967-02-15	1970-09-15	Emerson Electric Co	Snap switch and thermoresponsive actuator

0
- NL NL7700447B patent/NL169510B/xx unknown
- NL NL89644D patent/NL89644C/xx active
- IT IT500077D patent/IT500077A/it unknown
1952
- 1952-03-04 FR FR1052054D patent/FR1052054A/fr not_active Expired
- 1952-03-04 FR FR1052056D patent/FR1052056A/fr not_active Expired
- 1952-03-04 FR FR1052055D patent/FR1052055A/fr not_active Expired
1953
- 1953-03-02 CH CH308383D patent/CH308383A/fr unknown

Also Published As

Publication number	Publication date
FR1052055A (fr)	1954-01-21
FR1052056A (fr)	1954-01-21
FR1052054A (fr)	1954-01-21
IT500077A (mo)
CH308383A (fr)	1955-07-15
NL169510B (nl)

Publication	Publication Date	Title
DE1065766B (mo)
IT500077A (mo)
AT173165B (mo)	1952-11-25
FR999206A (mo)	1952-01-29
FR999393A (mo)	1952-01-31
BE516737A (mo)
BE511574A (mo)
BE511065A (mo)
BE514581A (mo)
BE519892A (mo)
BE516935A (mo)
BE511388A (mo)
BE517178A (mo)
BE514004A (mo)
BE509103A (mo)	1952-02-29
BE517255A (mo)
BE516940A (mo)
BE516713A (mo)
BE516722A (mo)
BE517208A (mo)
BE517061A (mo)
BE516996A (mo)
BE516758A (mo)
BE514011A (mo)	1954-05-14
BE520811A (mo)