DK565876A - Apparat til udsendelse af frekvensmodulerede svingninger under vand - Google Patents

Apparat til udsendelse af frekvensmodulerede svingninger under vand

Info

Publication number
DK565876A
DK565876A DK565876A DK565876A DK565876A DK 565876 A DK565876 A DK 565876A DK 565876 A DK565876 A DK 565876A DK 565876 A DK565876 A DK 565876A DK 565876 A DK565876 A DK 565876A
Authority
DK
Denmark
Prior art keywords
under water
frequency modulated
volumes under
distributing frequency
distributing
Prior art date
Application number
DK565876A
Other languages
Danish (da)
English (en)
Inventor
G M Renggli
Original Assignee
Efa Elektrofunkgeraete
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 Efa Elektrofunkgeraete filed Critical Efa Elektrofunkgeraete
Publication of DK565876A publication Critical patent/DK565876A/da

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B11/00Transmission systems employing sonic, ultrasonic or infrasonic waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Physical Water Treatments (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
DK565876A 1975-12-17 1976-12-16 Apparat til udsendelse af frekvensmodulerede svingninger under vand DK565876A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1634875A CH588789A5 (US20020125480A1-20020912-P00900.png) 1975-12-17 1975-12-17

Publications (1)

Publication Number Publication Date
DK565876A true DK565876A (da) 1977-06-18

Family

ID=4416556

Family Applications (1)

Application Number Title Priority Date Filing Date
DK565876A DK565876A (da) 1975-12-17 1976-12-16 Apparat til udsendelse af frekvensmodulerede svingninger under vand

Country Status (13)

Country Link
JP (1) JPS5286761A (US20020125480A1-20020912-P00900.png)
AU (1) AU504754B2 (US20020125480A1-20020912-P00900.png)
BR (1) BR7608462A (US20020125480A1-20020912-P00900.png)
CH (1) CH588789A5 (US20020125480A1-20020912-P00900.png)
DE (1) DE2656969A1 (US20020125480A1-20020912-P00900.png)
DK (1) DK565876A (US20020125480A1-20020912-P00900.png)
ES (1) ES454180A1 (US20020125480A1-20020912-P00900.png)
FI (1) FI763585A (US20020125480A1-20020912-P00900.png)
FR (1) FR2336006A1 (US20020125480A1-20020912-P00900.png)
GB (1) GB1513200A (US20020125480A1-20020912-P00900.png)
NL (1) NL7613846A (US20020125480A1-20020912-P00900.png)
NO (1) NO764241L (US20020125480A1-20020912-P00900.png)
ZA (1) ZA767342B (US20020125480A1-20020912-P00900.png)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5413748U (US20020125480A1-20020912-P00900.png) * 1977-06-30 1979-01-29
GB2119980B (en) * 1982-05-11 1985-10-16 Madelyn Carrol Freeman A device for use by a diver to give a signal
ES2063575T3 (es) * 1991-01-04 1995-01-01 Brosow Joergen Procedimiento y dispositivo para la transmision de una señal de informacion.

Also Published As

Publication number Publication date
ZA767342B (en) 1977-11-30
DE2656969A1 (de) 1977-07-07
FI763585A (US20020125480A1-20020912-P00900.png) 1977-06-18
ES454180A1 (es) 1977-12-01
FR2336006A1 (fr) 1977-07-15
CH588789A5 (US20020125480A1-20020912-P00900.png) 1977-06-15
AU504754B2 (en) 1979-10-25
AU2046476A (en) 1978-06-15
NO764241L (US20020125480A1-20020912-P00900.png) 1977-06-20
BR7608462A (pt) 1977-11-29
FR2336006B3 (US20020125480A1-20020912-P00900.png) 1979-01-19
GB1513200A (en) 1978-06-07
JPS5286761A (en) 1977-07-19
NL7613846A (nl) 1977-06-21

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