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Intrusion detection system
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Patent number 4,772,875
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Issue date Sep 20, 1988
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Denning Mobile Robotics, Inc.
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James F. Maddox
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G06 - COMPUTING CALCULATING COUNTING
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Obstacle avoidance system
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Patent number 4,751,658
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Issue date Jun 14, 1988
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Denning Mobile Robotics, Inc.
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Mark B. Kadonoff
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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Power-up sequencing apparatus
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Patent number 4,736,116
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Issue date Apr 5, 1988
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Denning Mobile Robotics, Inc.
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Raymond Pavlak
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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Ultrasonic ranging system
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Patent number 4,701,893
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Issue date Oct 20, 1987
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Denning Mobile Robotics, Inc.
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Lon J. Muller
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G01 - MEASURING TESTING