GB499380A - Improvements in or relating to the correctors of listening apparatus - Google Patents
Improvements in or relating to the correctors of listening apparatusInfo
- Publication number
- GB499380A GB499380A GB2012637A GB2012637A GB499380A GB 499380 A GB499380 A GB 499380A GB 2012637 A GB2012637 A GB 2012637A GB 2012637 A GB2012637 A GB 2012637A GB 499380 A GB499380 A GB 499380A
- Authority
- GB
- United Kingdom
- Prior art keywords
- angle
- shaft
- pointer
- aircraft
- rotate
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL48580D NL48580C (de) | 1937-07-20 | ||
GB2012637A GB499380A (en) | 1937-07-20 | 1937-07-20 | Improvements in or relating to the correctors of listening apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2012637A GB499380A (en) | 1937-07-20 | 1937-07-20 | Improvements in or relating to the correctors of listening apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB499380A true GB499380A (en) | 1939-01-20 |
Family
ID=10140809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2012637A Expired GB499380A (en) | 1937-07-20 | 1937-07-20 | Improvements in or relating to the correctors of listening apparatus |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB499380A (de) |
NL (1) | NL48580C (de) |
-
0
- NL NL48580D patent/NL48580C/xx active
-
1937
- 1937-07-20 GB GB2012637A patent/GB499380A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL48580C (de) |
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