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