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FR478320A
(en)
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Multi-focal eye lens
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ES60304A1
(en)
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Multifocal spectacle lenses.
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FR419586A
(en)
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Spectacle lens for nearsightedness made up of two independent lenses
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DK16752C
(en)
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Machine for the manufacture of glass jars and the like.
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FR465200A
(en)
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Military bridge
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CH55228A
(en)
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Toric lens
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CH62899A
(en)
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Binoculars theater glasses
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DK16148C
(en)
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Procedure for Manufacturing Superfostat.
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FR423478A
(en)
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Improvements made to nose clips, eyeglasses or bifocal glasses
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FR479080A
(en)
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Case for wristwatches
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ES63567A1
(en)
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A polishing refining apparatus for the manufacture of spectacle lenses.
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FR435757A
(en)
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Eyeglass tenon
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DK22590C
(en)
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Smoothing device for the manufacture of glass lenses.
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FR469801A
(en)
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New meridian compass
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FR450294A
(en)
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Umbrella glasses
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DK29368C
(en)
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Procedure for the production of photographic reliefs.
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DK21602C
(en)
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Centering Steel Holder Glasses.
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DK24713C
(en)
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Lens Grinding Machine.
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CH70932A
(en)
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Lathe bezel
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FR436466A
(en)
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Binoculars nose clip
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DK22937C
(en)
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Procedure for the manufacture of a detergent.
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ES61525A3
(en)
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Celluloid glasses.
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ES59963A1
(en)
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A process for the manufacture of elastic agglomerates.
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DK20541C
(en)
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Procedure for the production of artificial stone.
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FI6165A
(en)
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Branding method
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