4. Fire escape, ladder, or scaffold
  5. With handrail or guard for ladder

Robert J. Lyons, Sr.

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Door assembly with augmented counterbalancing

Movable or removable closures – With means mounting closure for swinging – With biasing means
Patent

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Door assembly with multiple torque rod counterbalancing

Movable or removable closures – With means mounting closure for swinging – With biasing means
Patent

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Extendable railing

Fences – Rail
Patent

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Hold open arm assembly

Closure fasteners – Extension link – Notched keeper
Reexamination Certificate

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Portable safety post

Fire escape – ladder – or scaffold – With handrail or guard for ladder
Patent

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Profile ID: LFUS-PAI-P-407991

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