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All Patents in class 177/220
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,993,592Mar. 05, 1935F.M. CarrollWeighing scale
2,607,580Aug. 19, 1952M.W. RomigPendulum scale
3,436,968Apr. 08, 1969E.D. Bright, P.I. UngerProcessing Control Systemelectronic circuitry and apparatus
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