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http://www.google.com/patents/US662021?utm_source=gb-gplus-share
Patent US662021 - HALF TO VEREINIGTE ELEKTRICTTATS ACTIEN
HALF TO VEREINIGTE ELEKTRICTTATS ACTIEN
ANTON POLLAK
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Patent number
: 662021
Filing date
: Dec 21, 1899
Issue date
: Nov 20, 1900
Inventor
:
ANTON POLLAK
Original Assignee
:
F ONE
Current U.S. Classification
:
178/15
View patent at USPTO
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