4. Organic compounds -- part of the class 532-570 series
  5. Organic compounds
  6. Oxygen containing

Horst Leigeber

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Helical liquid crystalline element which produces linear polariz

Optical: systems and elements – Holographic system or element – Having optical element between object and recording medium
Patent

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Invisible, machine-detectable security marking, production...

Printed matter – Having revealable concealed information – fraud preventer or...
Reexamination Certificate

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Invisible, machine-detectable security marking, production...

Printed matter – Having revealable concealed information – fraud preventer or...
Reexamination Certificate

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Liquid-crystalline silicones having increased UV stability

Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – With bonding or intermediate layer of specified composition
Reexamination Certificate

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Machine-detectable security marking with an increased level...

Optics: measuring and testing – Document pattern analysis or verification
Reexamination Certificate

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Profile ID: LFUS-PAI-P-135103

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