Rolf Crema

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Device for adjustment of the viewfinder eyepiece of a camera

Patent

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Film advance mechanism

Patent

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Helical gear

Machine element or mechanism – Gearing – Rotary bodies
Reexamination Certificate

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Lens hood for a photographic lens

Optical: systems and elements – Glare or unwanted light reduction – Barrel end or lens mount shade
Patent

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Lens testing device

Optics: measuring and testing – Lens or reflective image former testing
Reexamination Certificate

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Profile ID: LFUS-PAI-P-53880

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