01246nam 2200361Ia 450 991069549490332120231122003145.0(CKB)5470000002369807(OCoLC)75289022(EXLCZ)99547000000236980720061107d1973 uy 0engurbn|---|||||txtrdacontentcrdamediacrrdacarrierBeehives of invention[electronic resource] Edison and his laboratories /by George E. DavidsonWashington, D.C. :Office of Publications, National Park Service, U.S. Dept. of the Interior,1973.1 electronic text HTML fileTitle from title screen (viewed on Sept. 15, 2006)."National Park Service history series."Includes bibliographical references.Beehives of inventionInventorsUnited StatesHistoryInventorsHistory.Davidson George E.1937-2000.1436001United States.National Park Service.GPOGPOBOOK9910695494903321Beehives of invention3594032UNINA