Patented Feb.
T rre ts
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85 science y
lia te
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a firs isc s,
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40 tio ith ,
a lic tio n
to escrib e.
Application filed Petouary 21, 1916, Serial No.
1,329,559.
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B Nikola Testa, iti
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tio . Serial-No.tJNTTED STATES PATENT OFFICE.
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a t
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. 3,1920. itio re
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is closed, ittin in
F sire h
p iece rie 95
u e
c irc sta ire . Renewed July 1919. specification tte Patent.
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NIXOLA TESLA, NEW YORK, ST.
I lly -
10 tra n
a tio ,
flu lse ss, r
less fre ita
d its ire tio ile is
15 effectiv ely eck tire . 79,703.
VALVULAR CONDUIT. 309,482.
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