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Leadholder or Related Patent Thumbnail Index |
 http://leadholder.com/pat-us02751700-1953-kin_5617.html |
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date of application date granted inventor assignee patent holder country |
1953 November 4 1956 June 26 W. E. Danjczek L&C Hartmuth Inc. United States |
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| patent employed on |
 Koh-I-Noor 5617 "Selectomatic" |
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