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US2334730A
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Fuse
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US2330838A
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Tube base
|
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Electrode support lead
|
|
US2274554A
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Electrical space discharge tube
|
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|
Discharge tube spacer
|
|
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|
Radio control device
|
|
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|
Tube base
|
|
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Method of making molded stems
|
|
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Stem for electrical space discharge devices
|
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Method of making molded stems
|
|
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Molded stem
|
|
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|
|
Cataphoretic deposition of insulating coatings
|
|
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Insulating coating for electrical space discharge tube elements
|
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Electrical space discharge tube lead-in construction
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Getter tab for vacuum tubes
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Ballast resistance tube
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Thermionic gaseous discharge rectifier
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|
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Fluorescent coating
|
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Electron discharge tube with fluorescent screen
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US2181288A
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Grid-making machine
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