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