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