CA119784A
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Electrical switch
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CA118555A
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Electrically operated valve
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US921761A
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Electrical switch.
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US921760A
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Electrically-operated valve.
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US802958A
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Electromagnetic valve.
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US802959A
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Electromagnetic valve.
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US802955A
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Electromagnetic valve.
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US802954A
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Mechanical push-button valve.
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US802956A
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Electromagnetic valve.
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US802957A
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Electrical mixing-valve.
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US802953A
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Electromagnetic valve-controlling system.
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US802951A
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Automatically-operated flushing system for water-closet bowls.
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US802952A
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Electromagnetic valve.
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US802950A
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Electromagnetic valve.
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US802949A
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Electromagnetic valve-controlling system.
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US802948A
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Electromagnetic valve.
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US775053A
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Electric switch.
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US802946A
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Electromagnetic valve.
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US802945A
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Electromagnetic valve.
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US775056A
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Electrical-contact-controlling float.
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