JPH047227Y2 - - Google Patents

Info

Publication number
JPH047227Y2
JPH047227Y2 JP1989050406U JP5040689U JPH047227Y2 JP H047227 Y2 JPH047227 Y2 JP H047227Y2 JP 1989050406 U JP1989050406 U JP 1989050406U JP 5040689 U JP5040689 U JP 5040689U JP H047227 Y2 JPH047227 Y2 JP H047227Y2
Authority
JP
Japan
Prior art keywords
diffusion prevention
pollution diffusion
membrane
float
prevention membrane
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
JP1989050406U
Other languages
English (en)
Japanese (ja)
Other versions
JPH02144031U (en]
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 JP1989050406U priority Critical patent/JPH047227Y2/ja
Publication of JPH02144031U publication Critical patent/JPH02144031U/ja
Application granted granted Critical
Publication of JPH047227Y2 publication Critical patent/JPH047227Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Cleaning Or Clearing Of The Surface Of Open Water (AREA)
JP1989050406U 1989-04-28 1989-04-28 Expired JPH047227Y2 (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989050406U JPH047227Y2 (en]) 1989-04-28 1989-04-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989050406U JPH047227Y2 (en]) 1989-04-28 1989-04-28

Publications (2)

Publication Number Publication Date
JPH02144031U JPH02144031U (en]) 1990-12-06
JPH047227Y2 true JPH047227Y2 (en]) 1992-02-26

Family

ID=31568922

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989050406U Expired JPH047227Y2 (en]) 1989-04-28 1989-04-28

Country Status (1)

Country Link
JP (1) JPH047227Y2 (en])

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0452272Y2 (en]) * 1989-08-23 1992-12-09
JP7145801B2 (ja) * 2019-03-25 2022-10-03 東亜建設工業株式会社 汚濁防止装置および方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5423182A (en) * 1977-07-21 1979-02-21 Isao Kikuchi Rotary type sable molding machine
JPS6319384U (en]) * 1986-07-25 1988-02-08

Also Published As

Publication number Publication date
JPH02144031U (en]) 1990-12-06

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