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Leadholder or Related Patent Thumbnail Index |
 http://leadholder.com/pat-us-d166161-1949-eagle_3377.html |
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date of application date granted inventor assignee patent holder country |
1949 June 16 1952 March 11 Benjamin W. Hanle Eagle Pencil Company United States |
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| patent employed on |
 Eagle Turquoise 3377 Prestomatic |
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