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2203460
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Information
Patent Grant
2203460
References
Source
Patent Number
2,203,460
Date Filed
Not available
Date Issued
Tuesday, June 4, 1940
84 years ago
CPC
G01L19/0046 - using isolation membranes
G01L7/068 - correcting or regulating means for bellows
US Classifications
073 - Measuring and testing
092 - Expansible chamber devices
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