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http://www.google.sh/patents/US2552783?utm_source=gb-gplus-share
Patent US2552783 - HOUSED GAS SUPPLY WITH GAS WEIGHING
HOUSED GAS SUPPLY WITH GAS WEIGHING
L. E. HARPER et al
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Abstract
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Description
Claims
Patent number
: 2552783
Filing date
: 21 Feb 1947
Issue date
: 15 May 1951
Inventors
:
L. E. HARPER
,
L. E. HARPER
Current U.S. Classification
:
222/3
;
62/48.1
;
62/49.2
;
177/116
;
222/58
;
222/146.5
;
222/182
;
236/1.00R
View patent at USPTO
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US5569151
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US5931342
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3 Aug 1999
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