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Non-Commercial Use
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Category
Laboratory Medicine
5
Object type
paper - fibre product
4
pressure transducers
1
Maker
Grass Instrument Company
5
Place of origin
Quincy
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Quincy, Norfolk county, Massachusetts, United States
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Polygraph, model 5D, by Grass Instrument Co., Amer
1960-1970
Polygraph, model 5D, by Grass Instrument Co., Amer
1960-1970
Pressure transducer in wooden case
1970-1980
Polygraph, model 5D, by Grass Instrument Co., Amer
1960-1970
Polygraph, model 5D, by Grass Instrument Co., Amer
1960-1970