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US3729711A
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Shift apparatus for small computer
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US3691309A
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Continuity and foreign potential detector
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US3665107A
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Monitoring circuit in data sets,with signal muting
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US3660627A
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Actuators with torsion arms facilitating preselection in crossbar switches
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US3646275A
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Busy period marker speedup system
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US3678423A
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Windings for operating efficiently contacts of reeds with constricted areas
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US3646368A
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Checking for undesirable multiplicity of matrix paths
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US3679970A
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Selection matrix including a diode test circuit
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US3660681A
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Signal transmission system with a variable level clipping circuit
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US3587070A
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Memory arrangement having both magnetic-core and switching-device storage with a common address register
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US3585516A
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All pass network for phase equalizers of wide band communication systems
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US3560804A
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Battery-feed and impulsing circuit using a fast-operating relay
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US3586786A
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Interlock for two asynchronous systems
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US3550083A
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Data communication via direct-coupled individual parallel conductors
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US3536902A
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Sequence step check circuit
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US3539943A
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Oscillator utilizing gyrator circuit
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US3582561A
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Permalloy film monitoring device for telephone line circuits
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US3560664A
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Apparatus for monitoring a plurality of relays
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US3560663A
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Traffic control for modifying the routing plan in a network of switching centers
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US3517342A
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Circuit for simulating two mutually coupled inductors and filter stage utilizing the same
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