4. Electricity: measuring and testing
  5. Measuring, testing, or sensing electricity, per se
  6. Frequency of cyclic current or voltage

Roger P. Woodward

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Apparatus and method for testing electrical surge arresters

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent

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Dispensing method and apparatus for dispensing very small...

Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Sample mechanical transport means in or for automated...
Reexamination Certificate

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Dispensing method and apparatus for dispensing very small...

Chemistry: analytical and immunological testing – Including sample preparation – Volumetric liquid transfer
Reexamination Certificate

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Imaging sonar system and method

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding
Patent

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Improvements in a system for determining atmospheric data relati

Optics: measuring and testing – Velocity or velocity/height measuring – With light detector
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Profile ID: LFUS-PAI-P-259668

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