NL72107C - - Google Patents

Info

Publication number
NL72107C
NL72107C NL72107DA NL72107C NL 72107 C NL72107 C NL 72107C NL 72107D A NL72107D A NL 72107DA NL 72107 C NL72107 C NL 72107C
Authority
NL
Netherlands
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.)
Publication of NL72107C publication Critical patent/NL72107C/xx

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
NL72107D 1940-02-29 NL72107C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR971260T 1940-02-29

Publications (1)

Publication Number Publication Date
NL72107C true NL72107C (enrdf_load_stackoverflow)

Family

ID=9512011

Family Applications (1)

Application Number Title Priority Date Filing Date
NL72107D NL72107C (enrdf_load_stackoverflow) 1940-02-29

Country Status (5)

Country Link
US (1) US2559092A (enrdf_load_stackoverflow)
CH (1) CH268704A (enrdf_load_stackoverflow)
FR (1) FR971260A (enrdf_load_stackoverflow)
GB (1) GB643738A (enrdf_load_stackoverflow)
NL (1) NL72107C (enrdf_load_stackoverflow)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1345056A (en) * 1916-08-02 1920-06-29 Winston Overton Headlight
US1559212A (en) * 1920-05-03 1925-10-27 Winston Overton Reflector for headlights
US1735377A (en) * 1927-10-19 1929-11-12 Martha W Caughlan Reflecting surface
US1932469A (en) * 1929-12-02 1933-10-31 Telefunken Gmbh Short wave signaling
US1805886A (en) * 1930-10-31 1931-05-19 Conrad K Rizer Headlight
NL38496C (enrdf_load_stackoverflow) * 1932-07-06
GB436355A (en) * 1934-04-13 1935-10-09 Meaf Mach En Apparaten Fab Nv A new or improved method of and apparatus for clustering short and ultra-short electro-magnetic waves
FR781464A (fr) * 1934-06-30 1935-05-16 Phare pour véhicules automobiles, vélos, avions, etc.
DE706661C (de) * 1936-01-17 1941-05-31 Telefunken Gmbh Richtsendeanlage mit zwei voneinander unabhaengigen Richtcharakteristiken
US2423073A (en) * 1941-06-13 1947-06-24 Standard Telephones Cables Ltd Electromagnetic wave radiator
BE470623A (enrdf_load_stackoverflow) * 1941-11-28
US2408373A (en) * 1945-01-13 1946-10-01 Chu Lan Jen Antenna

Also Published As

Publication number Publication date
CH268704A (fr) 1950-05-31
FR971260A (fr) 1951-01-15
US2559092A (en) 1951-07-03
GB643738A (en) 1950-09-27

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