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G01J 1/4219

{Photoelectric exposure meters for determining the exposure time in recording or reproducing specially adapted for enlargers}

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Edits on 16 Mar, 2022
"Entity importer update"
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Golden AI
edited on 16 Mar, 2022
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G01J 1/4209
Edits on 5 Mar, 2022
"Created via: Entity Importer"
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Golden AI
created this topic on 5 Mar, 2022
Edits made to:
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 G01J 1/4219

{Photoelectric exposure meters for determining the exposure time in recording or reproducing specially adapted for enlargers}

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Is a
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Patent classification
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Cooperative Patent Classification
Website
http://data.epo.org/linked-data/def/cpc/G01J1-4219

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