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http://www.google.com/patents/US187516?utm_source=gb-gplus-share
Patent US187516 - IMPROVEMENT IN OBTAINING CREAM FROM MILK
IMPROVEMENT IN OBTAINING CREAM FROM MILK
WILLIAM COOLEY
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Description
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Patent number
: 187516
Issue date
: Feb 20, 1877
Inventor
:
WILLIAM COOLEY
Current U.S. Classification
:
426/491
;
210/175
;
210/800
View patent at USPTO
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