BE351858A - - Google Patents

Info

Publication number: BE351858A
Authority: BE; Belgium

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.)

1927-08-05

Publication of BE351858A publication Critical patent/BE351858A/xx

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)
Selective Calling Equipment (AREA)

BE351858D 1927-08-05 BE351858A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB20671/27A GB299915A (en)	1927-08-05	1927-08-05	Improvements in secret signalling systems

Publications (1)

Publication Number	Publication Date
BE351858A true BE351858A (enrdf_load_html_response)

Family

ID=10149730

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE351858D BE351858A (enrdf_load_html_response)	1927-08-05

Country Status (6)

Country	Link
US (1)	US1725032A (enrdf_load_html_response)
BE (1)	BE351858A (enrdf_load_html_response)
DE (1)	DE540782C (enrdf_load_html_response)
FR (1)	FR655685A (enrdf_load_html_response)
GB (1)	GB299915A (enrdf_load_html_response)
NL (1)	NL24066C (enrdf_load_html_response)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2132205A (en) *	1937-06-23	1938-10-04	Bell Telephone Labor Inc	Secret transmission
EP0139496B1 (en) *	1983-09-30	1990-05-23	Nippon Telegraph And Telephone Corporation	A radio transmission system for a phase modulation signal

0
- BE BE351858D patent/BE351858A/xx unknown
- NL NL24066D patent/NL24066C/xx active
1927
- 1927-07-06 US US203703A patent/US1725032A/en not_active Expired - Lifetime
- 1927-08-05 GB GB20671/27A patent/GB299915A/en not_active Expired
1928
- 1928-05-22 DE DEI34457D patent/DE540782C/de not_active Expired
- 1928-06-13 FR FR655685D patent/FR655685A/fr not_active Expired

Also Published As

Publication number	Publication date
DE540782C (de)	1932-01-07
FR655685A (fr)	1929-04-23
GB299915A (en)	1928-11-05
US1725032A (en)	1929-08-20
NL24066C (enrdf_load_html_response)

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