. . . "Rejection of the application for a reissue upon new and amended claims of the letters patent originally issued in 1838 to Barnabas Langdon embracing the letters of rejection from Hon. Thomas Ewbank, Commissioner of patents, to Charles M. Keller, Counsel for the applicant, together with other documents and introductory remarks, Albany, June, 1852"@en . . . "Rejection of the application for a reissue upon new and amended claims of the letters patent originally issued in 1838 to Barnabas Langdon : embracing the letters of rejection from Hon. Thomas Ewbank, Commissioner of patents, to Charles M. Keller, Counsel for the applicant, together with other documents and introductory remarks, Albany, June, 1852" . "Rejection of the application for a reissue upon new and amended claims of the letters patent originally issued in 1838 to Barnabas Langdon : embracing the letters of rejection from Hon. Thomas Ewbank, Commissioner of patents, to Charles M. Keller, Counsel for the applicant, together with other documents and introductory remarks, Albany, June, 1852"@en . . . "Patents"@en . . . . . . .