US2704490A
(en)
*
|
|
1955-03-22 |
|
hammond |
US2596996A
(en)
*
|
1938-07-08 |
1952-05-20 |
Olive D Ross |
High-frequency superregenerative apparatus
|
BE475045A
(hr)
*
|
1938-09-30 |
|
|
|
US2467670A
(en)
*
|
1939-07-28 |
1949-04-19 |
Rca Corp |
Radio pulse echo system using doppler effect
|
US2492012A
(en)
*
|
1939-09-01 |
1949-12-20 |
Rca Corp |
Radio frequency system for altitude or distance measurement
|
GB542634A
(en)
*
|
1939-10-16 |
1942-01-21 |
Helge Fabian Rost |
Apparatus for simultaneously measuring distances and directions of invisible objects from a movable or stationary spot
|
DE767455C
(de)
*
|
1939-12-28 |
1952-08-14 |
Hans Heil |
Verfahren zur Entfernungs- und Geschwindigkeitsbestimmung reflektierender bewegter Objekte
|
US2589965A
(en)
*
|
1940-01-10 |
1952-03-18 |
Rost Helge Fabian |
System for locating, indicating, and/or following objects in space
|
FR955986A
(hr)
*
|
1941-01-20 |
1950-01-23 |
|
|
US2527547A
(en)
*
|
1941-02-10 |
1950-10-31 |
Int Standard Electric Corp |
Self-contained radio guiding apparatus for mobile craft
|
US2449976A
(en)
*
|
1941-02-24 |
1948-09-28 |
Int Standard Electric Corp |
Tridimensional obstacle detection system
|
US2468032A
(en)
*
|
1941-02-28 |
1949-04-26 |
Int Standard Electric Corp |
Direction and distance indicating system
|
US2444031A
(en)
*
|
1941-03-08 |
1948-06-29 |
Int Standard Electric Corp |
Electromagnetic wave obstacle detection system
|
US2541030A
(en)
*
|
1941-10-30 |
1951-02-13 |
Standard Telephones Cables Ltd |
Radio pulse distance and direction indicator
|
US2471516A
(en)
*
|
1941-12-20 |
1949-05-31 |
Bell Telephone Labor Inc |
Plan position indicating system and method
|
US2617982A
(en)
*
|
1942-04-30 |
1952-11-11 |
Sperry Corp |
Radio gun control system
|
US2779939A
(en)
*
|
1942-05-07 |
1957-01-29 |
Robert M Page |
Indicating systems
|
US2485748A
(en)
*
|
1942-07-15 |
1949-10-25 |
Automatic Elect Lab |
Observation apparatus without wire changeovers
|
US2677127A
(en)
*
|
1942-08-21 |
1954-04-27 |
Robert M Page |
Radio echo indicating apparatus
|
US2629866A
(en)
*
|
1942-09-19 |
1953-02-24 |
Robert M Page |
Position indicating apparatus
|
US2415678A
(en)
*
|
1942-10-03 |
1947-02-11 |
Gen Electric |
Antenna
|
US2447728A
(en)
*
|
1942-10-28 |
1948-08-24 |
Westinghouse Electric Corp |
Radio direction and range indicator
|
US2452349A
(en)
*
|
1942-12-24 |
1948-10-26 |
Gen Electric |
Directive radio antenna
|
US2512086A
(en)
*
|
1942-12-25 |
1950-06-20 |
Bowen Edward George |
Radio locating apparatus
|
US2428351A
(en)
*
|
1943-01-22 |
1947-10-07 |
Sperry Gyroscope Co Inc |
Radio wave reflectivity indicating system
|
US2421018A
(en)
*
|
1943-02-27 |
1947-05-27 |
Standard Telephones Cables Ltd |
Radio detection system
|
US2485584A
(en)
*
|
1943-03-15 |
1949-10-25 |
Sperry Corp |
Distance measuring apparatus
|
US2705319A
(en)
*
|
1943-05-07 |
1955-03-29 |
Dauber Harry |
Detection of changes in terrain reflection coefficient
|
US2428793A
(en)
*
|
1943-06-10 |
1947-10-14 |
Submarine Signal Co |
Antenna system
|
US2540121A
(en)
*
|
1943-06-17 |
1951-02-06 |
Sperry Corp |
Stereoscopic object locating system
|
US2539476A
(en)
*
|
1943-06-23 |
1951-01-30 |
Rines Robert Harvey |
System and method of communication
|
US2437286A
(en)
*
|
1943-08-17 |
1948-03-09 |
Sperry Corp |
Radar device
|
US2519397A
(en)
*
|
1943-10-16 |
1950-08-22 |
Richard H Ranger |
Radio location device
|
CH244084A
(de)
*
|
1943-10-27 |
1946-08-31 |
Patelhold Patentverwertung |
Verfahren und Einrichtung zur Beobachtung eines Gegenstandes von einer Stelle aus, an der Schwingungen gesendet und empfangen werden.
|
US2428616A
(en)
*
|
1943-11-02 |
1947-10-07 |
Philco Corp |
Electrical protective device
|
US2716235A
(en)
*
|
1943-11-05 |
1955-08-23 |
Sperry Rand Corp |
Object detecting and locating systems
|
US2589216A
(en)
*
|
1943-11-23 |
1952-03-18 |
Sperry Corp |
Aircraft apparatus for simulating a line of sight-defining structure
|
US2418846A
(en)
*
|
1943-12-03 |
1947-04-15 |
Bell Telephone Labor Inc |
Submarine detection system
|
US2556201A
(en)
*
|
1944-01-15 |
1951-06-12 |
Geotronics Corp |
Pulse-echo direction and ranging device
|
US2436578A
(en)
*
|
1944-03-04 |
1948-02-24 |
Ruskin |
Means for altering the reflection of radar waves
|
US2476032A
(en)
*
|
1944-03-08 |
1949-07-12 |
Bell Telephone Labor Inc |
Doppler effect speed and drift indicating system
|
US2559511A
(en)
*
|
1944-04-27 |
1951-07-03 |
Rca Corp |
Object detection system utilizing radio pulses
|
US2473974A
(en)
*
|
1944-05-18 |
1949-06-21 |
Schuck Oscar Hugo |
Underwater sound detecting and indicating system
|
US2431952A
(en)
*
|
1944-06-07 |
1947-12-02 |
Gen Electric |
Pulse generating circuit
|
US2415302A
(en)
*
|
1944-06-19 |
1947-02-04 |
Gen Electric |
Pulse generating circuit
|
US2416111A
(en)
*
|
1944-06-19 |
1947-02-18 |
Gen Electric |
Pulse generating circuit
|
US2624874A
(en)
*
|
1944-09-04 |
1953-01-06 |
Rines Robert Harvey |
Electrical apparatus for solving right triangles
|
US2533267A
(en)
*
|
1944-09-08 |
1950-12-12 |
Sperry Corp |
Tracking apparatus
|
US2452388A
(en)
*
|
1944-09-20 |
1948-10-26 |
Philco Corp |
Electromagnetic system
|
US2666191A
(en)
*
|
1944-10-02 |
1954-01-12 |
Harold P Knauss |
Underwater sound detecting and indicating system
|
US2510687A
(en)
*
|
1944-11-17 |
1950-06-06 |
Rca Corp |
Brightness control for pulse echo position indicator systems
|
US2591856A
(en)
*
|
1944-12-09 |
1952-04-08 |
Bell Telephone Labor Inc |
Pulse echo distance indicator
|
US2471264A
(en)
*
|
1945-01-01 |
1949-05-24 |
Bell Telephone Labor Inc |
Radio object location system
|
US2486172A
(en)
*
|
1945-01-08 |
1949-10-25 |
Automatic Elect Lab |
Impulse testing apparatus
|
US2962694A
(en)
*
|
1945-02-01 |
1960-11-29 |
Raytheon Co |
Ranging system
|
US2419024A
(en)
*
|
1945-02-21 |
1947-04-15 |
Rca Corp |
Radio viewing system
|
US2606289A
(en)
*
|
1945-03-08 |
1952-08-05 |
Russell S Stanton |
Electrical pulse generator
|
US2446960A
(en)
*
|
1945-03-10 |
1948-08-10 |
Int Projector Corp |
Echo sounding indicator
|
FR959536A
(hr)
*
|
1945-03-10 |
1950-03-31 |
|
|
US2626313A
(en)
*
|
1945-03-26 |
1953-01-20 |
Napolin Seymour |
Apparatus for determining time intervals
|
US2543449A
(en)
*
|
1945-05-17 |
1951-02-27 |
Alfred G Emslie |
Radio pulse-echo moving object detection system
|
US2646562A
(en)
*
|
1945-05-17 |
1953-07-21 |
Us Sec War |
Radio object-location system for moving target indication
|
US2617983A
(en)
*
|
1945-05-17 |
1952-11-11 |
Alfred G Emslie |
Moving target detecting system
|
US2803819A
(en)
*
|
1945-06-07 |
1957-08-20 |
William R Blair |
Object locating system
|
US2531393A
(en)
*
|
1945-06-08 |
1950-11-28 |
Burnight T Robert |
Electronic coordinating system
|
US2539593A
(en)
*
|
1945-07-18 |
1951-01-30 |
Rines Robert Harvey |
Electroacoustic system
|
US2488371A
(en)
*
|
1945-08-01 |
1949-11-15 |
Bell Telephone Labor Inc |
Navigational apparatus
|
US2547066A
(en)
*
|
1945-10-16 |
1951-04-03 |
Herbert M Wagner |
Beacon guide
|
US2836812A
(en)
*
|
1945-11-02 |
1958-05-27 |
Gen Electric |
Expanded display for cathode ray tubes
|
US2644154A
(en)
*
|
1945-12-10 |
1953-06-30 |
Us Sec War |
Moving object indication receiver circuit
|
US2522125A
(en)
*
|
1945-12-29 |
1950-09-12 |
Bell Telephone Labor Inc |
Antenna driving mechanism
|
US2518916A
(en)
*
|
1946-02-06 |
1950-08-15 |
Rca Corp |
Radio bomb release system
|
US2514924A
(en)
*
|
1946-03-27 |
1950-07-11 |
Gen Electric |
Pulse echo detection of moving targets
|
US2641754A
(en)
*
|
1946-04-12 |
1953-06-09 |
Nat Res Dev |
Terrain clearance indicator
|
US2544433A
(en)
*
|
1946-05-27 |
1951-03-06 |
Tomlinson I Moseley |
Radar scanner unit
|
US2479539A
(en)
*
|
1946-06-25 |
1949-08-16 |
Tomlinson I Moseley |
Radar scanner unit
|
US2464394A
(en)
*
|
1946-06-26 |
1949-03-15 |
Rca Corp |
Nutating mechanism
|
US2475746A
(en)
*
|
1947-01-25 |
1949-07-12 |
Kenyon Gyro & Electronics Corp |
Radar antenna stabilizer
|
US2520840A
(en)
*
|
1947-02-15 |
1950-08-29 |
Union Switch & Signal Co |
Apparatus for automatically checking the operation of pulse-echo radio detection systems
|
US2567229A
(en)
*
|
1947-05-16 |
1951-09-11 |
Leighton L Morse |
Apparatus for measurement of time intervals between pulses
|
US2645769A
(en)
*
|
1947-06-05 |
1953-07-14 |
Walter Van B Roberts |
Continuous wave radar system
|
NL147430C
(nl)
*
|
1948-07-06 |
|
Halcon International Inc |
Werkwijze voor het gelijktijdig bereiden van propeen- oxyde en styreen.
|
US2934763A
(en)
*
|
1949-02-28 |
1960-04-26 |
Hopkins Cleveland |
Rapid scanning antenna directive system
|
US2535850A
(en)
*
|
1949-06-24 |
1950-12-26 |
Hammond Instr Co |
Radio antenna apparatus
|
US2699529A
(en)
*
|
1949-08-26 |
1955-01-11 |
Bell Telephone Labor Inc |
Electronic timer
|
US2852676A
(en)
*
|
1955-02-15 |
1958-09-16 |
Ivan L Joy |
Voltage train generating device
|
US2861264A
(en)
*
|
1955-04-12 |
1958-11-18 |
Itt |
Direction finder system
|
GB2539727B
(en)
|
2015-06-25 |
2021-05-12 |
Airspan Ip Holdco Llc |
A configurable antenna and method of operating such a configurable antenna
|
GB2539723A
(en)
*
|
2015-06-25 |
2016-12-28 |
Airspan Networks Inc |
A rotable antenna apparatus
|