FR478679A - Wireless telegraphy and telephony system - Google Patents

Wireless telegraphy and telephony system

Info

Publication number
FR478679A
FR478679A FR478679DA FR478679A FR 478679 A FR478679 A FR 478679A FR 478679D A FR478679D A FR 478679DA FR 478679 A FR478679 A FR 478679A
Authority
FR
France
Prior art keywords
telephony system
wireless telegraphy
telegraphy
wireless
telephony
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
Other languages
French (fr)
Inventor
Lee De Forest
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 FR478679A publication Critical patent/FR478679A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B7/00Generation of oscillations using active element having a negative resistance between two of its electrodes
    • H03B7/02Generation of oscillations using active element having a negative resistance between two of its electrodes with frequency-determining element comprising lumped inductance and capacitance
    • H03B7/10Generation of oscillations using active element having a negative resistance between two of its electrodes with frequency-determining element comprising lumped inductance and capacitance active element being gas-discharge or arc-discharge tube
FR478679D 1915-05-14 1915-05-14 Wireless telegraphy and telephony system Expired FR478679A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR478679T 1915-05-14

Publications (1)

Publication Number Publication Date
FR478679A true FR478679A (en) 1915-12-28

Family

ID=1516159

Family Applications (1)

Application Number Title Priority Date Filing Date
FR478679D Expired FR478679A (en) 1915-05-14 1915-05-14 Wireless telegraphy and telephony system

Country Status (1)

Country Link
FR (1) FR478679A (en)

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