000 00986cam a22002771 4500
001 po 41000004
003 DLC
005 20260227111858.0
008 790310s1941 xx 000 0 eng c
010 _apo 41000004
035 _a(OCoLC)4731849
040 _aU.S. Patent office. Libr.
_cOCl
_dDLC
042 _apremarc
050 0 0 _aTK6471
_b.C6
082 _a621.38796
100 1 _aCochran, Lyall Baker.
245 1 4 _aThe telechronometer,
_btelephone service measurement in units of time,
_cby Lyall Baker Cochran.
260 _aSeattle,
_bUniversity of Washington,
_c1941.
300 _a69 p. incl. illus., tables, diagrs.
_c23 cm.
490 0 _aWashington (State) University. Engineering experiment station. Engineering experiment series. Bulletin
_vno. 104
504 _aBibliographical foot-notes.
650 0 _aTelephone
_xEquipment and supplies.
650 0 _aChronometers.
650 0 _aTelephone
_xRates.
740 0 _aTelephone service mesurement in units of time.
999 _c51698
_d51698