4. Static structures (e.g., buildings)
  5. With disparate protective coating

Semyon Fridlyand

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Apparatus for retrofitting an existing door to provide a fire ra

Static structures (e.g. – buildings) – With disparate protective coating
Patent

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Ball valve locking device

Fluid handling – With lock or seal – Locks against rotary motion
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1561806

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