CA680458A - Recording equipment in depth measurement apparatus or fish detection apparatus by means of echo device - Google Patents

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

Info

Publication number
CA680458A
CA680458A CA680458A CA680458DA CA680458A CA 680458 A CA680458 A CA 680458A CA 680458 A CA680458 A CA 680458A CA 680458D A CA680458D A CA 680458DA CA 680458 A CA680458 A CA 680458A
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
CA680458A
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 CA680458A publication Critical patent/CA680458A/en
Expired legal-status Critical Current

Links

CA680458A Recording equipment in depth measurement apparatus or fish detection apparatus by means of echo device Expired CA680458A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA680458T

Publications (1)

Publication Number Publication Date
CA680458A true CA680458A (en) 1964-02-18

Family

ID=35981537

Family Applications (1)

Application Number Title Priority Date Filing Date
CA680458A Expired CA680458A (en) Recording equipment in depth measurement apparatus or fish detection apparatus by means of echo device

Country Status (1)

Country Link
CA (1) CA680458A (en)

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