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Leadholder or Related Patent Thumbnail Index |
 http://leadholder.com/pat-us01745226-1927-alteneder.html |
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date of application date granted inventor assignee patent holder country |
1927 November 9 1930 January 28 Francis E. Meyer – United States |
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| patent employed on |
 Theo. Alteneder & Sons Pencil |
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