CA680974A - Recording equipment in depth measurement apparatus of fish detection apparatus by means of echo device - Google Patents

Recording equipment in depth measurement apparatus of fish detection apparatus by means of echo device

Info

Publication number
CA680974A
CA680974A CA680974A CA680974DA CA680974A CA 680974 A CA680974 A CA 680974A CA 680974 A CA680974 A CA 680974A CA 680974D A CA680974D A CA 680974DA CA 680974 A CA680974 A CA 680974A
Authority
CA
Canada
Prior art keywords
recording equipment
depth measurement
fish detection
echo device
detection apparatus
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
Application number
CA680974A
Inventor
Miyagawa Kiyoshi
Katagiri Yasohachi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
Nippon Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA680974A publication Critical patent/CA680974A/en
Expired legal-status Critical Current

Links

CA680974A Recording equipment in depth measurement apparatus of fish detection apparatus by means of echo device Expired CA680974A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA680974T

Publications (1)

Publication Number Publication Date
CA680974A true CA680974A (en) 1964-02-25

Family

ID=35982058

Family Applications (1)

Application Number Title Priority Date Filing Date
CA680974A Expired CA680974A (en) Recording equipment in depth measurement apparatus of fish detection apparatus by means of echo device

Country Status (1)

Country Link
CA (1) CA680974A (en)

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