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