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Emergency brake for presses
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Patent number 4,372,202
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Issue date Feb 8, 1983
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Ross Operating Valve Company
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Russell J. Cameron
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B30 - PRESSES
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Valve safety indicating means
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Patent number 4,330,013
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Issue date May 18, 1982
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Ross Operating Valve Company
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Russell J. Cameron
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F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
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Valve safety indicating means
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Patent number 4,227,547
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Issue date Oct 14, 1980
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Ross Operating Valve Company
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Russell J. Cameron
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F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
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Self monitoring double valve
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Patent number 4,181,148
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Issue date Jan 1, 1980
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Ross Operating Valve Company
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Neil E. Russell
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F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
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