4. Communications: electrical
  5. Land vehicle alarms or indicators
  6. Internal alarm or indicator responsive to a condition of the...

Optrel AG

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Active electro-optical filter device and glare-protection...

Optical: systems and elements – Glare or unwanted light reduction
Reexamination Certificate

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Anti-glare protection device

Optical: systems and elements – Lens – Diffusing
Reexamination Certificate

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Antiglare device for welding protective masks

Apparel – Guard or protector – For wearer's head
Reexamination Certificate

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Electrically controllable optical filter element

Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Patent

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Electro-optic welding lens assembly

Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent

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Profile ID: LFUS-PAI-P-422848

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