NL156560B - Quaternair communicatiestelsel met differentiele fasemodulatie. - Google Patents

Quaternair communicatiestelsel met differentiele fasemodulatie.

Info

Publication number
NL156560B
NL156560B NL6811205.A NL156560DA NL156560B NL 156560 B NL156560 B NL 156560B NL 156560D A NL156560D A NL 156560DA NL 156560 B NL156560 B NL 156560B
Authority
NL
Netherlands
Prior art keywords
quaternary
communication system
phase modulation
differential phase
differential
Prior art date
Application number
NL6811205.A
Other languages
English (en)
Original Assignee
Western Electric Co
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 NL156560B publication Critical patent/NL156560B/nl

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/04—Controlling or regulating desired parameters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Prevention Of Electric Corrosion (AREA)
NL6811205.A 1949-11-03 Quaternair communicatiestelsel met differentiele fasemodulatie. NL156560B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2818249A GB669675A (en) 1949-11-03 1949-11-03 Improvements relating to apparatus for the electrolytic prevention of corrosion of metallic underground structures

Publications (1)

Publication Number Publication Date
NL156560B true NL156560B (nl)

Family

ID=10271574

Family Applications (2)

Application Number Title Priority Date Filing Date
NL6811205.A NL156560B (nl) 1949-11-03 Quaternair communicatiestelsel met differentiele fasemodulatie.
NL74280D NL74280C (nl) 1949-11-03

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL74280D NL74280C (nl) 1949-11-03

Country Status (4)

Country Link
DE (1) DE843638C (nl)
FR (1) FR1026243A (nl)
GB (1) GB669675A (nl)
NL (2) NL74280C (nl)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1132407B (de) * 1955-09-19 1962-06-28 Quante Wilhelm Schaltungsanordnung zum kathodischen Schutz metallischer Bauteile in der Erde oder im Wasser
NL239003A (nl) * 1958-05-09
US3055813A (en) * 1958-11-17 1962-09-25 Pure Oil Co Current controller for use in cathodic protection of steel structures
DE1161738B (de) * 1958-12-19 1964-01-23 Rolland Clifford Sabins Anordnung zur automatischen Regelung des Fremdstromes in Anlagen zum kathodischen Korrosionsschutz
US2963413A (en) * 1959-01-12 1960-12-06 Rolland C Sabins Electrolytic system
US3113093A (en) * 1959-02-03 1963-12-03 Engelhard Ind Inc Cathodic protection system
US3004905A (en) * 1959-02-09 1961-10-17 Rolland C Sabins Cathodic protection system

Also Published As

Publication number Publication date
DE843638C (de) 1952-07-10
FR1026243A (fr) 1953-04-24
GB669675A (en) 1952-04-09
NL74280C (nl)

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