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ROTARY VALVE AND ANALYTICAL CHROMATOGRAPHIC SYSTEM USING THE SAME

NETHERLANDS / GERMANY / SWITZERLAND / UNITED KINGDOM Pat. # 1.789.7
CANADA Pat. # 2.577.824
CHINA Pat. # ZL 200480044192.0
UNITED STATES Pat. # 7.503.203

DIAPHRAGM-SEALED VALVE HAVING INTERMEDIATE COMMUNICATION PORTS

UNITED STATES Pat # 8.104.506
CANADA Pat. # 2.690.617

DIAPHRAGM-SEALED VALVE WITH PROCESS PURGING GROOVE

UNITED STATES Pat # 7.931.043
CHINA Pat. #ZL 200880126544.5

DIAPHRAGM-SEALED VALVE, ANALYTICAL CHROMATOGRAPHIC SYSTEM AND METHOD USING THE SAME

UNITED STATES Pat # 7.216.528
CANADA Pat. # 2.631.892 / 2.718.301
CHINA Pat. # ZL 200580049422.7 / ZL201010292889.7
UNITED KINGDOM / NETHERLANDS / GERMANY Pat. # 1.880.131
GERMANY Pat. # 60 2005 043 222.1

TEMPERATURE COMPENSATED VALVE FOR GAS CHROMATOGRAPHY

CANADA Pat. # 2.735.807
UNITED STATES Pat. # 8.794.594 / 8.851.452
UNITED KINGDOM / NETHERLANDS / GERMANY Pat. # 2 331 858
GERMANY Pat. # 60 2009 013 543.0

DIAPHRAGM-SEALED VALVE WITH PROCESS PURGING GROOVE & DIAPHRAGM-SEALED VALVE HAVING A LOCKING MECHANISM

CHINA Pat. # ZL200880126544.5
UNITED STATES OF AMERICA Pat. # 7.931.043 / 8.469.057

CONICAL ROTARY VALVE FOR CHROMATOGRAPHIC APPLICATIONS

UNITED STATES Pat. # 9.004.449

IMPROVED FITTING COMPONENT, FERRULE AND NUT

CANADA Pat. # 2.770.970
UNITED STATES Pat. # 8.573.653

DIAPHRAGM-SEALED VALVE WITH IMPROVED ACTUATOR DESIGN

CHINA Pat. # ZL 2013 8 0020318.X
UNITED STATES Pat. # 9.377.444
JAPAN Pat. # 6101713

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