JPS6441259U - - Google Patents

Info

Publication number
JPS6441259U
JPS6441259U JP1987083267U JP8326787U JPS6441259U JP S6441259 U JPS6441259 U JP S6441259U JP 1987083267 U JP1987083267 U JP 1987083267U JP 8326787 U JP8326787 U JP 8326787U JP S6441259 U JPS6441259 U JP S6441259U
Authority
JP
Japan
Prior art keywords
outer periphery
main body
center
vertical hole
protrusion
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.)
Granted
Application number
JP1987083267U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0337402Y2 (de
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 filed Critical
Priority to JP1987083267U priority Critical patent/JPH0337402Y2/ja
Publication of JPS6441259U publication Critical patent/JPS6441259U/ja
Application granted granted Critical
Publication of JPH0337402Y2 publication Critical patent/JPH0337402Y2/ja
Expired legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81—Aquaculture, e.g. of fish

Landscapes

  • Artificial Fish Reefs (AREA)
JP1987083267U 1987-05-31 1987-05-31 Expired JPH0337402Y2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987083267U JPH0337402Y2 (de) 1987-05-31 1987-05-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987083267U JPH0337402Y2 (de) 1987-05-31 1987-05-31

Publications (2)

Publication Number Publication Date
JPS6441259U true JPS6441259U (de) 1989-03-13
JPH0337402Y2 JPH0337402Y2 (de) 1991-08-07

Family

ID=31307991

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987083267U Expired JPH0337402Y2 (de) 1987-05-31 1987-05-31

Country Status (1)

Country Link
JP (1) JPH0337402Y2 (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5657065U (de) * 1979-10-09 1981-05-16

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5657065U (de) * 1979-10-09 1981-05-16

Also Published As

Publication number Publication date
JPH0337402Y2 (de) 1991-08-07

Similar Documents

Publication Publication Date Title
JPS6441259U (de)
JPH0327929U (de)
JPS6267023U (de)
JPS61165155U (de)
JPS6198330U (de)
JPS62130466U (de)
JPS61160786U (de)
JPS62119119U (de)
JPS6253677U (de)
JPS6299958U (de)
JPS61150541U (de)
JPS6264272U (de)
JPS62103730U (de)
JPS6192501U (de)
JPS63152010U (de)
JPH02109538U (de)
JPS62190463U (de)
JPS6438936U (de)
JPS61155301U (de)
JPS6251098U (de)
JPH01107582U (de)
JPS6325186U (de)
JPS62111167U (de)
JPH01172900U (de)
JPS62110176U (de)