BE385832A - - Google Patents
Info
- Publication number
- BE385832A BE385832A BE385832DA BE385832A BE 385832 A BE385832 A BE 385832A BE 385832D A BE385832D A BE 385832DA BE 385832 A BE385832 A BE 385832A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K5/00—Whistles
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- 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
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- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/521—Constructional features
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- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/56—Display arrangements
- G01S7/58—Display arrangements for providing variable ranges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/02—Generating seismic energy
- G01V1/133—Generating seismic energy using fluidic driving means, e.g. highly pressurised fluids; using implosion
- G01V1/137—Generating seismic energy using fluidic driving means, e.g. highly pressurised fluids; using implosion which fluid escapes from the generator in a pulsating manner, e.g. for generating bursts, airguns
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR389646X | 1931-03-02 | ||
FR4043873X | 1931-07-30 | ||
GB3446932A GB416310A (en) | 1932-12-05 | 1932-12-05 | Improvements in and relating to acoustic sounding apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
BE385832A true BE385832A (en) |
Family
ID=31950329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE385832D BE385832A (en) | 1931-03-02 |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE385832A (en) |
GB (3) | GB389646A (en) |
NL (1) | NL35617C (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4632213A (en) * | 1983-02-28 | 1986-12-30 | Standard Oil Company (Indiana) | Seismic source system for use in water covered area |
GB2167557B (en) * | 1984-10-11 | 1988-07-20 | Fisco Electronics | Distance sensing |
-
0
- NL NL35617D patent/NL35617C/xx active
- BE BE385832D patent/BE385832A/xx unknown
-
1932
- 1932-03-02 GB GB6362/32A patent/GB389646A/en not_active Expired
- 1932-07-29 GB GB21478/32A patent/GB404383A/en not_active Expired
- 1932-07-29 GB GB34880/33A patent/GB404594A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB404594A (en) | 1934-01-18 |
GB404383A (en) | 1934-01-18 |
GB389646A (en) | 1933-03-23 |
NL35617C (en) |