getter based gas purification columns with safety shutdowns

Gas purification getter column safety device, namely, temperature sensing valves, ashing and meltdown mechanisms through inhibit gas flow through getter columns

Musical sound recordings; audio-visual recordings, namely, compact disc, tape cassettes, audio cassettes, audio tapes, audio discs, records, CD-ROMS, video tapes, video cassettes, video discs, DVDs, DATs, and laser discs, all featuring music; downloadable electronic publications in the nature of books, booklets, magazines, journals, manuals, brochures, leaflets, pamphlets and newsletters, all in the field of music; electronic publications, namely, books, booklets, magazines, journals, manuals...