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Lid assembly for facility access opening

Road structure – process – or apparatus – Pavement – Vault cover-closure
Reexamination Certificate

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Lift-assisted manhole cover

Road structure – process – or apparatus – Pavement – Vault cover-closure
Reexamination Certificate

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Lift-assisted manhole cover

Road structure – process – or apparatus – Pavement – Vault cover-closure
Reexamination Certificate

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Light weight vault lid

Road structure – process – or apparatus – Pavement – Vault cover-closure
Patent

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Lockable manhole cover

Road structure – process – or apparatus – Pavement – Vault cover-closure
Reexamination Certificate

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Locking cover

Road structure – process – or apparatus – Pavement – Vault cover-closure
Patent

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Locking cover for a soffit manhole

Road structure – process – or apparatus – Pavement – Vault cover-closure
Reexamination Certificate

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Locking cover for wells and underground tanks

Road structure – process – or apparatus – Pavement – Vault cover-closure
Reexamination Certificate

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Locking cover for wells and underground tanks

Road structure – process – or apparatus – Pavement – Vault cover-closure
Reexamination Certificate

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Locking device for coverings for manholes and other ground openi

Road structure – process – or apparatus – Pavement – Vault cover-closure
Patent

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Locking valve cover

Road structure – process – or apparatus – Pavement – Vault cover-closure
Patent

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