Document Type and Number:
Japanese Patent JPS5251539
Kind Code:
Y2
More Like This:
| JPS5358235 | PROJECTION SCREEN |
| JPH02282237 | SCREEN DEVICE |
| JP5021508 | Back projection type image display system |
Application Number:
JP4941972U
Publication Date:
November 22, 1977
Filing Date:
April 25, 1972
Export Citation:
International Classes:
G03B21/56; G03B21/62; G03B21/625; H04N5/64; H04N5/74; (IPC1-7): G03B21/60; H04N5/02; H04N5/74