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Leadholder or Related Patent Thumbnail Index |
 http://leadholder.com/pat-us03094102-1959-fc_9603.html |
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date of application date granted inventor assignee patent holder country |
1959 July 30 (1959 January 31, Germany) 1963 June 18 Josef M. Schwarzäugl A.W. Faber-Castell Germany |
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| patent employed on |
 Faber-Castell 9603 |
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