FR421925A - Improvements in wireless telegraphy devices - Google Patents

Improvements in wireless telegraphy devices

Info

Publication number
FR421925A
FR421925A FR421925A FR421925DA FR421925A FR 421925 A FR421925 A FR 421925A FR 421925 A FR421925 A FR 421925A FR 421925D A FR421925D A FR 421925DA FR 421925 A FR421925 A FR 421925A
Authority
FR
France
Prior art keywords
devices
wireless telegraphy
telegraphy
wireless
telegraphy devices
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
FR421925A
Other languages
French (fr)
Inventor
Johann Sacek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR421925A publication Critical patent/FR421925A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/003—Secret communication by varying carrier frequency at or within predetermined or random intervals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes

Landscapes

  • Health & Medical Sciences (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Lock And Its Accessories (AREA)
  • Transmitters (AREA)
  • Toys (AREA)
FR421925A 1910-09-13 1910-10-25 Improvements in wireless telegraphy devices Expired FR421925A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191021311T 1910-09-13

Publications (1)

Publication Number Publication Date
FR421925A true FR421925A (en) 1911-03-08

Family

ID=32492994

Family Applications (1)

Application Number Title Priority Date Filing Date
FR421925A Expired FR421925A (en) 1910-09-13 1910-10-25 Improvements in wireless telegraphy devices

Country Status (3)

Country Link
DE (1) DE240982C (en)
FR (1) FR421925A (en)
GB (1) GB191021311A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2550592C1 (en) * 1975-11-11 1990-12-06 Siemens Ag Radio system
DE2706616C1 (en) * 1977-02-17 1997-11-13 Siemens Ag Radio system for transmission of digital information
DE2706615C1 (en) * 1977-02-17 1990-11-15 Siemens Ag Radio system

Also Published As

Publication number Publication date
DE240982C (en)
GB191021311A (en) 1911-09-13

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