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2020
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Invention
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Power distribution method and apparatus. A power distribution apparatus, comprising: a plurality ... |
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2017
|
Invention
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Embedding and detecting codes in monitoring signatures. At least one monitoring element may be co... |
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2015
|
Invention
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Point machine and switch with snap-action and method of operating said point machine. A switch fo... |
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2013
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Invention
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Supplementary warning system for level crossing activated by train. Supplementary warning systems... |
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2011
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Invention
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An electrical isolator. An electrical isolator which includes a body defining an aperture thereth... |
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2009
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Invention
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Electrical switching apparatus. A switching apparatus for use in conjunction with a fuse, the swi... |
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2001
|
Invention
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Re-locatable partial discharge transducer head. An apparatus (10) for detecting the occurence of ... |
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Invention
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Partial discharge injector. A testing device (10) for safely testing the operation and calibratio... |
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2000
|
Invention
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A portable symbol. A symbol for establishing a telephone call, has the following characteristics:... |
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1999
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Invention
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Optical interferometer and method for writing phase structures. A method of forming a grating str... |
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1990
|
Invention
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Waveform generation and control. The present invention discloses an inverter circuit for producin... |
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1988
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Invention
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Controlling security access. A method and system for controlling security access to an installati... |
