4. Printed matter
  5. Having revealable concealed information, fraud preventer or...
  6. And electrically conductive material

Edward H. Weitzen

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Apparatus for detecting electrically conductive coatings on docu

Electricity: measuring and testing – Conductor identification or location – Inaccessible
Patent

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Embossed holograms formed on hard metal surfaces

Printing – Inkers – Roller
Patent

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Encoded security document

Printed matter – Having revealable concealed information – fraud preventer or... – And electrically conductive material
Patent

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Holograms embossed into metal surfaces

Printing – Inkers – Roller
Patent

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Holograms embossed into metal surfaces

Stock material or miscellaneous articles – Composite – Of bituminous or tarry residue
Patent

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Profile ID: LFUS-PAI-P-636789

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