NO132666B - - Google Patents

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Publication number
NO132666B
NO132666B NO498/73A NO49873A NO132666B NO 132666 B NO132666 B NO 132666B NO 498/73 A NO498/73 A NO 498/73A NO 49873 A NO49873 A NO 49873A NO 132666 B NO132666 B NO 132666B
Authority
NO
Norway
Prior art keywords
solution
residue
group
hydrazine
distilled
Prior art date
Application number
NO498/73A
Other languages
English (en)
Norwegian (no)
Other versions
NO132666C (enExample
Inventor
N H Edstroem
S G V Lindqvist
G E W Sparrendahl
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of NO132666B publication Critical patent/NO132666B/no
Publication of NO132666C publication Critical patent/NO132666C/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0407—Selecting arrangements for multiplex systems for time-division multiplexing using a stored program control

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Exchange Systems With Centralized Control (AREA)
NO498/73A 1972-02-08 1973-02-07 NO132666C (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE01446/72A SE353996B (enExample) 1972-02-08 1972-02-08

Publications (2)

Publication Number Publication Date
NO132666B true NO132666B (enExample) 1975-09-01
NO132666C NO132666C (enExample) 1975-12-10

Family

ID=20258204

Family Applications (1)

Application Number Title Priority Date Filing Date
NO498/73A NO132666C (enExample) 1972-02-08 1973-02-07

Country Status (14)

Country Link
US (1) US3818142A (enExample)
JP (1) JPS4889614A (enExample)
AU (1) AU473237B2 (enExample)
BE (1) BE795167A (enExample)
CA (1) CA1001274A (enExample)
DE (1) DE2306301C3 (enExample)
DK (1) DK142069B (enExample)
FI (1) FI57863C (enExample)
FR (1) FR2171246B1 (enExample)
IT (1) IT978930B (enExample)
NL (1) NL7301527A (enExample)
NO (1) NO132666C (enExample)
SE (1) SE353996B (enExample)
SU (1) SU659112A3 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2246145B1 (enExample) * 1973-07-20 1976-09-17 Ibm France
US3903370A (en) * 1973-12-21 1975-09-02 Bell Telephone Labor Inc Line switch controller for a time division switching system
US4005272A (en) * 1974-08-14 1977-01-25 Arthur A. Collins, Inc. Time folded TST (time space time) switch
US4001781A (en) * 1975-02-18 1977-01-04 International Standard Electric Corporation Electronic switching element
US3975712A (en) * 1975-02-18 1976-08-17 Motorola, Inc. Asynchronous communication interface adaptor
DE2618922C2 (de) * 1976-04-29 1978-04-06 Siemens Ag, 1000 Berlin Und 8000 Muenchen Schaltungsanordnung für PCM-Zeitmultiplexvermittlungen
SE424498B (sv) * 1977-09-09 1982-07-19 Ellemtel Utvecklings Ab Digitalt veljarenet
DE3122230A1 (de) * 1981-06-04 1982-12-23 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung fuer zeitmultiplex-fernmeldevermittlungsanlagen, insbesondere pcm-fernsprechvermittlungsanlagen, mit zeitmultiplexleitungen, deren zeitkanaele teils fuer nachrichtenverbindungen und teils zur uebertragung von signalisierungsinformationen dienen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458658A (en) * 1965-09-14 1969-07-29 New North Electric Co Nonblocking switching system with reduced number of contacts
US3458659A (en) * 1965-09-15 1969-07-29 New North Electric Co Nonblocking pulse code modulation system having storage and gating means with common control
US3585306A (en) * 1968-05-16 1971-06-15 Bell Telephone Labor Inc Tandem office time division switching system
FR2032113A5 (enExample) * 1969-02-19 1970-11-20 Labo Cent Telecommunicat
DE2108745C2 (de) * 1971-02-24 1980-12-18 Siemens Ag, 1000 Berlin Und 8000 Muenchen Schaltungsanordnung zum Abschluß von Vierdrahtverbindungsleitungen mit nach dem Zeitmultiplexprinzip mit Pulscodemodulation gebildeten Nachrichtenkanälen an Vermittlungsstellen mit speicherprogrammierten Zentralsteuerwerken für Fernmelde-, insbesondere Fernsprechanlagen
US3694580A (en) * 1971-07-28 1972-09-26 Bell Telephone Labor Inc Time division switching system
BE789402A (fr) * 1971-10-01 1973-01-15 Western Electric Co Systeme de commutation a repartition temporelle

Also Published As

Publication number Publication date
NL7301527A (enExample) 1973-08-10
DE2306301A1 (de) 1973-08-23
FR2171246B1 (enExample) 1977-02-04
IT978930B (it) 1974-09-20
JPS4889614A (enExample) 1973-11-22
BE795167A (fr) 1973-05-29
NO132666C (enExample) 1975-12-10
DK142069C (enExample) 1981-02-09
AU473237B2 (en) 1976-06-17
DE2306301B2 (de) 1975-04-24
CA1001274A (en) 1976-12-07
AU5179173A (en) 1974-08-08
SE353996B (enExample) 1973-02-19
SU659112A3 (ru) 1979-04-25
US3818142A (en) 1974-06-18
FI57863B (fi) 1980-06-30
FR2171246A1 (enExample) 1973-09-21
DE2306301C3 (de) 1975-12-04
DK142069B (da) 1980-08-18
FI57863C (fi) 1980-10-10

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