4. Measuring and testing
  5. Vibration
  6. By mechanical waves

David M. Allen

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Apparatus and method for digitally synchronizing the timing of a

Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data clocking
Patent

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Bi-metallic test switch

Electricity: measuring and testing – Electrolyte properties – Using a battery testing device
Reexamination Certificate

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Convertible flashlight-headlamp

Illumination – Self powered lamp – Battery supported separable lamp assembly
Reexamination Certificate

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Convertible flashlight-headlamp

Lighting – Light fixture – Hand-held – body-attached or lantern type
Design Patent

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Format for storing data on magnetic media

Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data in specific format
Patent

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Profile ID: LFUS-PAI-P-35191

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