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