4. Metal working
  5. Method of mechanical manufacture
  6. Electrical device making

Charles Watkins

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Combination book end and dumbell apparatus and method of utilizi

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Patent

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Field emission display

Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube
Reexamination Certificate

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Field emission display

Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube
Patent

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Internal plate flat-panel field emission display

Electric lamp or space discharge component or device manufacturi – Process – With assembly or disassembly
Patent

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Method of mechanical and electrical substrate connection

Metal working – Method of mechanical manufacture – Electrical device making
Patent

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Profile ID: LFUS-PAI-P-923848

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