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NL162796B - WATERPROOF SOCKET. - Google Patents

WATERPROOF SOCKET.

Info

Publication number
NL162796B
NL162796B NL7003296.A NL162796DA NL162796B NL 162796 B NL162796 B NL 162796B NL 162796D A NL162796D A NL 162796DA NL 162796 B NL162796 B NL 162796B
Authority
NL
Netherlands
Prior art keywords
waterproof socket
waterproof
socket
Prior art date
Application number
NL7003296.A
Other languages
Dutch (nl)
Original Assignee
Draka Kabel Bv
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.)
Publication of NL162796B publication Critical patent/NL162796B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies
    • 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
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Selective Calling Equipment (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Alarm Systems (AREA)
NL7003296.A 1950-07-21 WATERPROOF SOCKET. NL162796B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE691237X 1950-07-21

Publications (1)

Publication Number Publication Date
NL162796B true NL162796B (en)

Family

ID=20315203

Family Applications (2)

Application Number Title Priority Date Filing Date
NL7003296.A NL162796B (en) 1950-07-21 WATERPROOF SOCKET.
NL81161D NL81161C (en) 1950-07-21

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL81161D NL81161C (en) 1950-07-21

Country Status (4)

Country Link
US (1) US2706746A (en)
DE (1) DE886929C (en)
GB (1) GB691237A (en)
NL (2) NL81161C (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1001713B (en) * 1953-12-07 1957-01-31 Telefonbau & Normalzeit Gmbh Telephone subscriber station with button-controlled frequency selection and a microphone amplifier containing layer transistors
NL96910C (en) * 1954-10-25
DE1085201B (en) * 1955-01-19 1960-07-14 Josef Dirr Circuit arrangement for the evaluation of time-staggered alternating current pulses of a frequency transmitted over cordoned off lines for the identification of lines for billing in telecommunication systems, in particular telephone systems
DE1017661B (en) * 1956-01-30 1957-10-17 Telefonbau & Normalzeit Gmbh Device for sending numbers in the form of coded signals in telephone sets
DE1039107B (en) * 1956-06-28 1958-09-18 Standard Elektrik Lorenz Ag Circuit arrangement for electrical devices connected to a central battery via long-distance lines
US3076059A (en) * 1958-06-20 1963-01-29 Bell Telephone Labor Inc Signaling system
CH379584A (en) * 1958-09-03 1964-07-15 Standard Telephon & Radio Ag Electrical signaling device
DE1090273B (en) * 1959-05-09 1960-10-06 Philips Nv Circuit arrangement for evaluating signals of different frequencies in telecommunications systems
DE1082300B (en) * 1959-06-04 1960-05-25 Siemens Ag Circuit arrangement for subscriber stations in telecommunications, in particular telephone systems with keyboard selection
BE632027A (en) * 1959-10-02
DE1152447B (en) * 1960-03-10 1963-08-08 Neumann Elektronik Gmbh Interchangeable loudspeaker system with sound-controlled connection paths

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2250100A (en) * 1939-11-14 1941-07-22 Bell Telephone Labor Inc Signaling system
US2554201A (en) * 1946-06-19 1951-05-22 Ericsson Telefon Ab L M Key-sending automatic telephone signaling system

Also Published As

Publication number Publication date
GB691237A (en) 1953-05-06
NL81161C (en)
DE886929C (en) 1953-08-20
US2706746A (en) 1955-04-19

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