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Class Information
Number: 137/630.11
Name: Fluid handling > Systems > Sequentially progressive opening or closing of plural valves > Pressure equalizing or auxiliary shunt flow > One valve seats against other valve (e.g., concentric valves) > Locomotive throttle
Description: Systems which are disclosed, or structurally limited, for use in steam locomotives to control the feeding of steam to the motor means.

Patents under this class:

Patent Number Title Of Patent Date Issued

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