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US3484632A
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Variable speed controller for portable electric devices
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US3391374A
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Electric receptacle
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US3358100A
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Fused puller switch with fuses which can be removed only when the fused section is first removed
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US3336547A
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Mechanically and electrically interlocked electromagnetic contactors
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US3354275A
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Silent electric switch
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US3339039A
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Electrical connector with contactprotecting and arc-quenching shield
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US3294929A
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Electric switch with roller and ball contact structure
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US3406295A
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Cycling on-off electronic timing system using one relay
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US3310768A
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Electric circuit control
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US3312801A
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Tool handle switch
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US3290463A
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Trigger-operated electric switch mechanism
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US3284591A
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Enclosed switch with cover switch and connector interlocking means
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US3270157A
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Snap mechanism for slow-break electric switches
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US3249708A
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Locking means for electric switches
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US3325657A
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Cycling on-off electronic timing system
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US3301083A
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Resetting mechanism for electric relays
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US3277251A
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Enclosed switch with cover and connector interlock
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US3260824A
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Low energy non-arcing electric relay construction
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US3274353A
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Cover and switch interlock
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US3157760A
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Snap action toggle switch for high altitude use
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