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