Mar 1925,
1925 Radio. This was the cost of
one experimenter, half time for assistant Works engineer,
and skilled mechanic.P.
29) Rational Ediphone Sales Conference, Jan 1925, D7
Phonograph.
27) Buyers Guide, Warsaw collection .
organization.
32) Durand Edison, Jan 1918, Phono Ediphone.XI
22) Miller reminiscences, lew York Public ledger.L.
31) Experimental costs the Ediphone rose from around $9,000
p.
26) Ediphone Competition Bulletin, #179, April 1931.
24) Durand Gilmore, Mar 1907, Phono l.
25) Dyer Durand, April 1910, Phono, ph.
34) Ediphone Buyers Guide, Warsaw collection. 1913/1914 $15,000 p.
30) 78, Ediphone Business, May 1918, TAE Inc.
23) 1909, Phono Edison Business Phonograph.
33) Memo Constable, Development Work for Ediphone, lov
1919, Phono.a.
28) Charles Edison Division Managers, Sept 1917, TAE Inc. Meikle, Twentieth Century Limited Industrial Design in
America 1925-1939 (Philadelphia: Temple 1979), 82.a.in 1920. Ediphone minutes, experimental lists,
accounts. Commercial
dept.
36) J.
35) Durand Constable and Edison, Aug 1918, Phono
Ediphone.
