JPS644428U - - Google Patents

Info

Publication number
JPS644428U
JPS644428U JP9833287U JP9833287U JPS644428U JP S644428 U JPS644428 U JP S644428U JP 9833287 U JP9833287 U JP 9833287U JP 9833287 U JP9833287 U JP 9833287U JP S644428 U JPS644428 U JP S644428U
Authority
JP
Japan
Prior art keywords
screen
curvature
transmission
utility
model registration
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
JP9833287U
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 JP9833287U priority Critical patent/JPS644428U/ja
Publication of JPS644428U publication Critical patent/JPS644428U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Transforming Electric Information Into Light Information (AREA)
  • Overhead Projectors And Projection Screens (AREA)
JP9833287U 1987-06-26 1987-06-26 Pending JPS644428U (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9833287U JPS644428U (enrdf_load_stackoverflow) 1987-06-26 1987-06-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9833287U JPS644428U (enrdf_load_stackoverflow) 1987-06-26 1987-06-26

Publications (1)

Publication Number Publication Date
JPS644428U true JPS644428U (enrdf_load_stackoverflow) 1989-01-11

Family

ID=31324498

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9833287U Pending JPS644428U (enrdf_load_stackoverflow) 1987-06-26 1987-06-26

Country Status (1)

Country Link
JP (1) JPS644428U (enrdf_load_stackoverflow)

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