01859nas 2200469-a 450 991068939950332120240916213021.0(CKB)110978978734857(CONSER)---78643766-(EXLCZ)9911097897873485720780627a19779999 -a- aengtxtrdacontentcrdamediacrrdacarrierIndex to the U.S. patent classification[Washington, D.C.] U.S. Dept. of Commerce, Patent and Trademark Office [Supt. of Docs., U.S. G.P.O., distributor1 online resourcePrint version: Index to the U.S. patent classification. (DLC) 78643766 (OCoLC)4010459 0161-9470 Index to the U.S. patent classification systemIndex to the United States patent classificationIndex to the US patent classificationIndex to classificationIndex, U.S. Patent classification systemINDEX TO THE US PATENT CLASSIFICATION SYSTEMPatentsUnited StatesClassificationIndexesPeriodicalsPatentsClassificationfast(OCoLC)fst01054865United Statesfasthttps://id.oclc.org/worldcat/entity/E39PBJtxgQXMWqmjMjjwXRHgrqIndexes.fastPeriodicals.fastIndexes.lcgftPeriodicals.lcgftPatentsClassificationPatentsClassification.608/.7/012United States.Patent and Trademark Office.United States.Patent and Trademark Office.Office of Classification Support.JOURNAL9910689399503321exl_impl conversionIndex to the U.S. patent classification3144539UNINA