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BE906087A
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Magnetically operated bidirectional motor - includes central permanent magnet disc interacting with four smaller magnetic discs
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BE905128A
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System of classification - has facility for synthesis, analysis, memory and imagination
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BE904078A
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Board game for two players - uses pieces held on board by magnetism, some forming obstacles and others forming route between obstacles
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BE903053A
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Road setting out instrument - has combined line tubes and level removably carried on tubes by collar
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BE900834A
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Device for cleaning walls etc. - has paper roller absorbing fine dust particles, carried on support frame
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BE899306A
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Firearm for civil defence - has multiple barrels to spread shot designed to injure not kill
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BE898769A
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Solar heating installation for buildings - uses plate covered by transparent membrane as air heater and fan to circulate this air through building
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BE897141A
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Transportable dwelling for disaster areas - incorporates solar collectors and wind turbines to provide heating and lighting
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BE897005A
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Display stand for exhibitions - has vertical panels of varying size placed together at different angles
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BE887633A
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Circular shape solar collector
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FR2489952A1
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Arrow for underwater crossbow - with normally folded spring-loaded tongue pieces around point opening out with impact force
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FR2489953A1
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Crossbow for use underwater - fires arrows out of telescopic barrel with sliding length adjustment to suit different arrows
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BE871284A
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Solar collector for heating water.
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