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JP2001296602A
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Back projection type display
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JPH10133281A
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Overhead projector
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JPH08241133A
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Constant current, constant-voltage direct-current power source for incandescent lamp
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JPH0660301A
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Recording safety device for magnetic card recording/ reproducing device
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JPS63199337A
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Device for protecting reel shaft in portable projector
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JPS61128235A
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Cooling device for slide mount
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JPS6169057A
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Endless device of long-sized film or the like
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JPS60202052A
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Automatically stopping device for unwinding film
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JPS60111230A
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Controller of film feed mechanism
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JPS59144897A
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Device for floating portable apparatus
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JPS59143141A
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Film feed device of projector
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JPS58186733A
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Disk holder for slide film
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JPS5880632A
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Automatic rewinding device in projector
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JPS586864A
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Automatic playing out unit for film
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JPS57205770A
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Card type voice generator
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JPS5740240A
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Timing matching device of double band projector
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JPS5732567A
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Filament for projecting lamp
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JPS5726837A
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Comparison projector
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JPS5724034A
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Multitrack optical sound recording film
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