4. Closure fasteners
  5. Operators with knobs or handles

Daniel N. Nigro, Jr.

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Cover for an exit alarm lock

Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Patent

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Door handle locking mechanism with dual function springs

Closure fasteners – Operators with knobs or handles
Patent

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Exit alarm lock

Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Patent

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Exit alarm lock assembly with push pad pivotally...

Closure fasteners – Bolts – Emergency operating means
Reexamination Certificate

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Exit alarm lock deadbolt having guide supports

Closure fasteners – Bolts – Sliding
Reexamination Certificate

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Profile ID: LFUS-PAI-P-147009

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