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