000			02433cpcaa2200457 4500
001			mm 78024703
003			DLC
005			20260227111624.0
007			cr |||||||||||
008			780830|||||||||||| eng
010			_amm 78024703 _bms 69002037
040			_aDLC _cDLC _edacs _dDLC
072		7	_aS _2lcmd
100	1		_aHammond, John Hays, _d1888-1965.
245	0	0	_aJohn Hays Hammond papers, _f1908-1965 _g(bulk 1912-1953).
300			_a6,000 _fitems.
300			_a19 _fcontainers plus _a1 _foversize.
300			_a7 _flinear feet.
351			_aArranged in 3 series. Series 1: Notebooks, 1912-1918; Series 2: General Case File, 1908-1965; and Series 3: Photographs, 1919-1955.
506	0		_aOpen to research.
520	8		_aCorrespondence, notebooks, technical papers, legal briefs, chronologies, printed matter, sketches, annotated photographs, and other papers relating to Hammond's scientific career and inventions. Subjects include Hammond's basic experiments in radio control, frequency modulation, intermediate frequency, triode electron tube, and the Elmer Ambrose Sperry dispute on inertial guidance patents. Correspondents include Ernst Fredrik Werner Alexanderson, Alexander Graham Bell, Lee De Forest, Irving Langmuir, and Nikola Tesla.
545	0		_aInventor and scientist.
546			_aCollection material in English.
555	8		_aFinding aid available in the Library of Congress Manuscript Reading Room and at _uhttp://hdl.loc.gov/loc.mss/eadmss.ms010036.
600	1	0	_aAlexanderson, Ernst Fredrik Werner, _d1878-1975 _vCorrespondence.
600	1	0	_aBell, Alexander Graham, _d1847-1922 _vCorrespondence.
600	1	0	_aDe Forest, Lee, _d1873-1961 _vCorrespondence.
600	1	0	_aLangmuir, Irving, _d1881-1957 _vCorrespondence.
600	1	0	_aSperry, Elmer Ambrose, _d1860-1930.
600	1	0	_aTesla, Nikola, _d1856-1943 _vCorrespondence.
650		0	_aElectron tubes.
650		0	_aInertial navigation systems _xPatents.
650		0	_aRadio _xResearch.
650		0	_aRadio frequency modulation.
656		7	_aInventors. _2itoamc
656		7	_aScientists. _2itoamc
856	4		_3Finding aid _uhttp://hdl.loc.gov/loc.mss/eadmss.ms010036
856	4		_3Finding aid (PDF) _uhttp://hdl.loc.gov/loc.mss/eadmss.ms010036.3
999			_c39894 _d39894