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FR675403A - Improvements in radioelectric devices and processes - Google Patents

Improvements in radioelectric devices and processes

Info

Publication number
FR675403A
FR675403A FR675403DA FR675403A FR 675403 A FR675403 A FR 675403A FR 675403D A FR675403D A FR 675403DA FR 675403 A FR675403 A FR 675403A
Authority
FR
France
Prior art keywords
processes
radioelectric
devices
radioelectric 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
Other languages
French (fr)
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.)
Kolster Brandes Ltd
Original Assignee
Kolster Brandes Ltd
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 Kolster Brandes Ltd filed Critical Kolster Brandes Ltd
Application granted granted Critical
Publication of FR675403A publication Critical patent/FR675403A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
FR675403D 1928-05-21 1929-05-18 Improvements in radioelectric devices and processes Expired FR675403A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US312187XA 1928-05-21 1928-05-21

Publications (1)

Publication Number Publication Date
FR675403A true FR675403A (en) 1930-02-10

Family

ID=21858233

Family Applications (1)

Application Number Title Priority Date Filing Date
FR675403D Expired FR675403A (en) 1928-05-21 1929-05-18 Improvements in radioelectric devices and processes

Country Status (2)

Country Link
FR (1) FR675403A (en)
GB (1) GB312187A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2747180A (en) * 1952-06-20 1956-05-22 Zenith Plastics Company Radar reflector

Also Published As

Publication number Publication date
GB312187A (en) 1930-08-21

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