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DE10046863C1
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Interface for light barrier device has communication device for optoelectronic data transfer activated by magnetically-operated switch
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DE10041182A1
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Optoelectronic device
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Procedure for monitoring a hazardous area
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Device for identifying and checking the function of sensors
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DE19831088A1
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Circuit arrangement for checking a tri-state detection circuit
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DE19730333C1
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Light signal amplification and processing circuit
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Holder for light barrier transmitting or receiving strips
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EP0797109A2
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Method for driving an optical barrier
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