| http://www.w3.org/ns/prov#value | - ication numberUS 3929309 A, US 3929309A, US-A-3929309, US3929309 A, US3929309AInventorsDe Vore Ellen GOriginal AssigneePierce Louis BExport CitationBiBTeX, EndNote, RefManPatent Citations (18), Referenced by (53), Classifications (9) External Links: USPTO, USPTO Assignment, EspacenetHead restUS 3929309 AAbstract A chin and cheek engaging head rest and holder is provided, intended primarily for use
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