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Chester F. Carlson papers
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Technical Papers
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Patent File
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Competing Xerography patents, U. S. A
Competing Xerography patents, U. S. A
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id
819475
level (num)
3
level (text)
file
identifier (local_mss)
966067
max depth
0
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created
2014-10-17 18:27:50 UTC
updated
2022-10-25 19:03:23 UTC
Description data
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unitid
{"value"=>"966067", "type"=>"local_mss"}
unitdate
{"value"=>"1961-1964 November", "type"=>"inclusive", "normal"=>"1961-01/1964-11"}
unittitle
{"value"=>"Competing Xerography patents, U. S. A"}
container
{"type"=>"box", "value"=>"46"}
{"type"=>"reel", "value"=>"41"}
date_start
1961-01
keydate
1961-01
date_end
1964-11
date_inclusive_start
1961
date_inclusive_end
1964
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