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PCE
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DIFF Subgroup
B01D 35/157

Flow control valves: Damping or calibrated passages

Introduced: January 1990

Title

Titles differ between systems:

IPC: Flow control valves; Damping or calibrated passages

CPC: Flow control valves: Damping or calibrated passages

Full Title

Full titles differ between systems:

IPC:

Filtering devices having features not specifically covered by groups , or for applications not specifically covered by groups; Auxiliary devices for filtration; Filter housing constructions > Safety devices specially adapted for filtration; Devices for indicating clogging > Flow control valves; Damping or calibrated passages

CPC:

Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions > Safety devices specially adapted for filtration (preventing or minimising fires or explosions A62C); Devices for indicating clogging (incorporated in a throw-away filter B01D27/10) > Flow control valves: Damping or calibrated passages

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.

Child Classifications

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