Patent classifications
Y
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Y10
TECHNICAL SUBJECTS COVERED BY FORMER USPC
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Y10T
TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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Y10T137/2931
Diverse fluid containing pressure systems
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Y10T137/2937
Gas pressure discharge of liquids feed traps [e.g., to boiler]
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Y10T137/2947
Gas pressure controlled by amount of liquid in trap
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