4. Closure fasteners
  5. Bolts
  6. Sliding and swinging

Chester J. Marks

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Door securing device

Closure fasteners – Bolts – Sliding and swinging
Patent

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Method and apparatus for a quick release security grill system

Movable or removable closures – With protective grille or safety guard – Removable
Reexamination Certificate

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Security bolt latch apparatus and method

Closure fasteners – Bolts – Sliding and rotary
Reexamination Certificate

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Profile ID: LFUS-PAI-P-852913

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