4. Closure fasteners
  5. Latch-spindle catches

Edward F. Humphrey

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Combination lockout/holdback apparatus

Closure fasteners – Latch-spindle catches
Patent

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Dual control mode lock

Locks – Operating mechanism – Using a powered device
Patent

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Dual control mode lock system

Locks – Operating mechanism – Using a powered device
Patent

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Hybrid plug lock

Locks – Operating mechanism – Key
Patent

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Key with compound actuator ramps in recessed longitudinal...

Locks – Operating mechanism – Key
Reexamination Certificate

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Profile ID: LFUS-PAI-P-986900

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