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Leadholder or Related Patent Thumbnail Index |
 http://leadholder.com/pat-us03450482-1967-trupoint_lh.html |
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date of application date granted inventor assignee patent holder country |
1967 June 12 1969 June 17 Virgil D. Dorstewitz Tru Point Products Inc. United States |
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| patent employed on |
 Trupoint Automatic |
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