JPH02131768U - - Google Patents

Info

Publication number
JPH02131768U
JPH02131768U JP3941089U JP3941089U JPH02131768U JP H02131768 U JPH02131768 U JP H02131768U JP 3941089 U JP3941089 U JP 3941089U JP 3941089 U JP3941089 U JP 3941089U JP H02131768 U JPH02131768 U JP H02131768U
Authority
JP
Japan
Prior art keywords
water tank
scale plate
light
shaped water
partition
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
JP3941089U
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 JP3941089U priority Critical patent/JPH02131768U/ja
Publication of JPH02131768U publication Critical patent/JPH02131768U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Instructional Devices (AREA)
JP3941089U 1989-04-03 1989-04-03 Pending JPH02131768U (US20030199744A1-20031023-C00003.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3941089U JPH02131768U (US20030199744A1-20031023-C00003.png) 1989-04-03 1989-04-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3941089U JPH02131768U (US20030199744A1-20031023-C00003.png) 1989-04-03 1989-04-03

Publications (1)

Publication Number Publication Date
JPH02131768U true JPH02131768U (US20030199744A1-20031023-C00003.png) 1990-11-01

Family

ID=31548295

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3941089U Pending JPH02131768U (US20030199744A1-20031023-C00003.png) 1989-04-03 1989-04-03

Country Status (1)

Country Link
JP (1) JPH02131768U (US20030199744A1-20031023-C00003.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106448392A (zh) * 2016-09-09 2017-02-22 靳延 光线折射演示教具

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106448392A (zh) * 2016-09-09 2017-02-22 靳延 光线折射演示教具

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