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

Hollingsworth & Vose Company

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Charge stabilized electret filter media

Gas separation: apparatus – Electric field separation apparatus
Patent

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Disk lining material

Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent

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Fiber web having a high stiffness

Gas separation – Specific media material – Fibrous or strand form
Reexamination Certificate

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Filled Glass fiber separators for batteries and method for makin

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer or spacer insulating structure
Patent

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Filter media

Gas separation – Specific media material – Fibrous or strand form
Reexamination Certificate

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Profile ID: LFUS-PAI-P-387643

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