Patent drawing - Patent 3,337,098 - . Public domain imageRelatedPatent drawing - IT1090451 patent - . Public domain imagePatent drawing - Pat196747 - . Public domain imagePatent drawing - Tapper patent - . Public domain imagePatent drawing - US1420665 - . Public domain imagePatent drawing - USPatent4151431-1 - . Public domain imagePatent drawing - EolePatent - . Public domain imageMorePatent drawing - Patent 3,337,098 - . Public domain imagefile_downloadDownloadcrop_originalOrder Printrate_reviewdescriptionSummary Camping trailer patent by Lloyd Jay Bontragerlabel_outlineTagspatentspatent drawingsus patent officeunited states patent drawingsinventionsdate_rangeDate2016createSourceUSPTOlinkLinkhttp://uspto.gov/copyrightCopyright infopublic domain