JPS634228Y2 - - Google Patents

Info

Publication number
JPS634228Y2
JPS634228Y2 JP1982083328U JP8332882U JPS634228Y2 JP S634228 Y2 JPS634228 Y2 JP S634228Y2 JP 1982083328 U JP1982083328 U JP 1982083328U JP 8332882 U JP8332882 U JP 8332882U JP S634228 Y2 JPS634228 Y2 JP S634228Y2
Authority
JP
Japan
Prior art keywords
plate
light
transparent
plates
large number
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
JP1982083328U
Other languages
English (en)
Japanese (ja)
Other versions
JPS58185875U (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 JP8332882U priority Critical patent/JPS58185875U/ja
Publication of JPS58185875U publication Critical patent/JPS58185875U/ja
Application granted granted Critical
Publication of JPS634228Y2 publication Critical patent/JPS634228Y2/ja
Granted legal-status Critical Current

Links

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  • Instructional Devices (AREA)
JP8332882U 1982-06-04 1982-06-04 光の学習具 Granted JPS58185875U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8332882U JPS58185875U (ja) 1982-06-04 1982-06-04 光の学習具

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8332882U JPS58185875U (ja) 1982-06-04 1982-06-04 光の学習具

Publications (2)

Publication Number Publication Date
JPS58185875U JPS58185875U (ja) 1983-12-10
JPS634228Y2 true JPS634228Y2 (forum.php) 1988-02-02

Family

ID=30092343

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8332882U Granted JPS58185875U (ja) 1982-06-04 1982-06-04 光の学習具

Country Status (1)

Country Link
JP (1) JPS58185875U (forum.php)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5342587Y2 (forum.php) * 1973-05-04 1978-10-13

Also Published As

Publication number Publication date
JPS58185875U (ja) 1983-12-10

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