CH284629A - Communication facility. - Google Patents

Communication facility.

Info

Publication number: CH284629A
Authority: CH; Switzerland
Prior art keywords: communication facility; facility; communication
Prior art date: 1947-03-28

Application number

Other languages

French (fr)

Inventor

Limited Marconi S Wire Company

Original Assignee

Marconi Wireless Telegraph 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.)

1947-03-28

Filing date

1948-03-03

Publication date

1952-07-31

1948-03-03 Application filed by Marconi Wireless Telegraph Co filed Critical Marconi Wireless Telegraph Co

1952-07-31 Publication of CH284629A publication Critical patent/CH284629A/en

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
- H04K1/04—Secret communication by frequency scrambling, i.e. by transposing or inverting parts of the frequency band or by inverting the whole band

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Mobile Radio Communication Systems (AREA)

CH284629D 1947-03-28 1948-03-03 Communication facility. CH284629A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB284629X		1947-03-28

Publications (1)

Publication Number	Publication Date
CH284629A true CH284629A (en)	1952-07-31

Family

ID=10276008

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH284629D CH284629A (en)	1947-03-28	1948-03-03	Communication facility.

Country Status (2)

Country	Link
CH (1)	CH284629A (en)
GB (1)	GB652364A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1273002B (en) *	1963-09-11	1968-07-18	Siemens Ag	Device for the encrypted transmission of voice signals by interchanging subbands
AT257696B (en) *	1965-01-14	1967-10-25	Siemens Ag	Circuit arrangement for voice transmission

1947
- 1947-03-28 GB GB8529/47A patent/GB652364A/en not_active Expired
1948
- 1948-03-03 CH CH284629D patent/CH284629A/en unknown

Also Published As

Publication number	Publication date
GB652364A (en)	1951-04-25

Similar Documents

Publication	Publication Date	Title
CH268017A (en)	1950-04-30	Connection.
CH294912A (en)	1953-11-30	Automatic telephony installation.
CH282556A (en)	1952-04-30	Radio receiver.
CH270123A (en)	1950-08-15	Disconnector.
CH282893A (en)	1952-05-15	Communication facility.
CH282393A (en)	1952-04-30	Metallization installation.
CH280689A (en)	1952-01-31	Directed radio transmitter.
CH284629A (en)	1952-07-31	Communication facility.
CH269815A (en)	1950-07-31	Stylograph.
CH289544A (en)	1953-03-15	Powerline communication installation.
CH260208A (en)	1949-02-28	Intercom.
CH281906A (en)	1952-03-31	Telegraph installation.
CH256922A (en)	1948-09-15	Snap-in.
FR973040A (en)	1951-02-06	Radio communication installation
CH281908A (en)	1952-03-31	Telephone installation.
ES14764Y (en)	1947-09-01	Stepladder.
ES17200Y (en)	1949-01-01	Building unit.
FR57897E (en)	1953-09-18	Telephone installation
ES15512Y (en)	1947-12-16	Bidet-toilet.
DK70922C (en)	1950-04-24	Bonemaskine.
DK70151C (en)	1949-10-31	Narresut.
ES14484Y (en)	1947-07-01	Iron-stove.
ES16154Y (en)	1948-12-16	Overbag.
ES15904Y (en)	1951-05-16	Canapé-bed.
DK70499C (en)	1950-01-16	Skevægt.