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