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US5660295A
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Covers for gauging and sampling openings
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US3696837A
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Electromagnetic fluid control valve
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US3699999A
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Vertical jet breather valve
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US3653402A
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Pressure responsive valve
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US3568904A
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Sample data web and strip guide control system
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US3570735A
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Method and apparatus of guiding moving webs
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US3524524A
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Handcrank for liquid level gauge
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US3665958A
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Vent closure device
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US3566912A
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Magnetically biased valve device
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ES357053A1
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A valve device sensitive to pressure. (Machine-translation by Google Translate, not legally binding)
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GB1193408A
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Improvements in or relating to relief valves
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US3502361A
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Magnetically biased tank vent
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US3528453A
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Magnetic bias adjusting means for tank vent
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US3533542A
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Automatic fluidic web guide system
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US3452420A
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Wire retaining method
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US3454039A
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Pilot valve with bellows valve body
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US3433133A
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Motion-transmitting linkage
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US3373893A
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Floating hinged cover
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US3387757A
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Web guide apparatus
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GB1132467A
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Photoresponsive apparatus for continuously determining the centre-line position of alongitudinally travelling light-impervious web
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