4. Geometrical instruments

James F. Burns

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Circuit board assembly with disconnect arm

Electricity: electrical systems and devices – Miscellaneous
Patent

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Disconnect arm for electrical equipment

Geometrical instruments
Patent

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Non-damaging flatness and thickness gauge for glass

Optics: measuring and testing – By polarized light examination – With light attenuation
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Profile ID: LFUS-PAI-P-893230

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