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AU4940572A
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AUTOMATIC CONTROL Specification SYSTEM
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FR1496716A
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Servo-mechanism for positioning large organs
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US3318197A
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Servo positioning device
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GB988842A
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A locking device for a shaft for operating a flap or like valve
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FR1327967A
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Vacuum-actuated control device intended in particular for a dust removal system
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GB961364A
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Pressure/vacuum operated controller
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FR1319141A
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Machine for oxy-cutting with a template or without a template
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FR1327787A
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Hydraulic and manual operated valve
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GB941570A
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Improved control apparatus for gate type valves
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GB949418A
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Improved profile cutting machine
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FR1318280A
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Indicator light
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GB957263A
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Improvements in indicator lights
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GB969800A
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Improved hydraulic actuating means for gate type valves
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CA748231A
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Vacuum operated controller
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CA756871A
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Servo positioning device
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CA696004A
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Control apparatus for gate type valves
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CA685958A
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Indicator lights
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CA681058A
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Profile cutting machine
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