4. Road structure, process, or apparatus
  5. Pavement
  6. Vault cover-closure

Jean-Claude Hauer

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Ball and socket joint for the waterproof assembly of two pipe el

Pipe joints or couplings – Ball and socket
Patent

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Closing device

Static structures (e.g. – buildings) – With entrance for persons or objects in horizontal or...
Reexamination Certificate

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Device for closing an opening, particularly a man hole

Receptacles – Closures – Pivotable
Reexamination Certificate

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Device for closing an opening, particularly a street manhole

Receptacles – Closures – Pivotable
Reexamination Certificate

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Device for mutually locking two elements, in particular a...

Locks – Special application – For closures
Reexamination Certificate

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Profile ID: LFUS-PAI-P-752944

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