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Wratten number. In DICTIOUS you will not only get to know all the dictionary meanings for the word
Wratten number, but we will also tell you about its etymology, its characteristics and you will know how to say
Wratten number in singular and plural. Everything you need to know about the word
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English
Etymology
Named after Frederick Wratten, British inventor who founded the first photography company.
Noun
Wratten number (plural Wratten numbers)
- Any of the arbitrary alphanumeric codes in a system for labelling optical filters, usually for photographic use.