JPH03112399U - - Google Patents

Info

Publication number
JPH03112399U
JPH03112399U JP2230090U JP2230090U JPH03112399U JP H03112399 U JPH03112399 U JP H03112399U JP 2230090 U JP2230090 U JP 2230090U JP 2230090 U JP2230090 U JP 2230090U JP H03112399 U JPH03112399 U JP H03112399U
Authority
JP
Japan
Prior art keywords
view
blackboard wiper
sectional
cross
wiper
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.)
Pending
Application number
JP2230090U
Other languages
English (en)
Japanese (ja)
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 JP2230090U priority Critical patent/JPH03112399U/ja
Publication of JPH03112399U publication Critical patent/JPH03112399U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
JP2230090U 1990-03-06 1990-03-06 Pending JPH03112399U (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2230090U JPH03112399U (en]) 1990-03-06 1990-03-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2230090U JPH03112399U (en]) 1990-03-06 1990-03-06

Publications (1)

Publication Number Publication Date
JPH03112399U true JPH03112399U (en]) 1991-11-18

Family

ID=31525316

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2230090U Pending JPH03112399U (en]) 1990-03-06 1990-03-06

Country Status (1)

Country Link
JP (1) JPH03112399U (en])

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59227499A (ja) * 1983-06-08 1984-12-20 西出　博行 チヨ−ク粉吸引式の黒板ふき
JPS6333998B2 (en]) * 1982-01-19 1988-07-07 Haa Buoorenberuku Kg

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6333998B2 (en]) * 1982-01-19 1988-07-07 Haa Buoorenberuku Kg
JPS59227499A (ja) * 1983-06-08 1984-12-20 西出　博行 チヨ−ク粉吸引式の黒板ふき

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