LandOfFree - US Patents - Listing for Static structures (e.g., buildings),With entrance for persons or objects in horizontal or...

Static structures (e.g. – buildings) – With entrance for persons or objects in horizontal or... – With additional enclosure structure; e.g. – manhole

Caustic fluid blocking member in the base of a manhole

Static structures (e.g. – buildings) – With entrance for persons or objects in horizontal or... – With additional enclosure structure; e.g. – manhole

Chimney access with floating head

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

Circular type manholes

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

Closing device

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

Closing device for large passages in a prestressed pressure vess

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

Closure lid assembly for protective housings

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

Combination roof louver and attic access hatch

Static structures (e.g. – buildings) – With entrance for persons or objects in horizontal or... – With additional enclosure structure; e.g. – manhole

Combined bed and shelter device

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

Combined vent and escape hatch

Static structures (e.g. – buildings) – With entrance for persons or objects in horizontal or... – With additional enclosure structure; e.g. – manhole

Composite concrete and plastic manhole system

Static structures (e.g. – buildings) – With entrance for persons or objects in horizontal or... – With additional enclosure structure; e.g. – manhole

Composite water-tight door panel installation

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

Concrete products and methods of fabrication

Static structures (e.g. – buildings) – With entrance for persons or objects in horizontal or... – With additional enclosure structure; e.g. – manhole

Connecting tubular body for handhole or manhole, block body for

Static structures (e.g. – buildings) – With entrance for persons or objects in horizontal or... – With additional enclosure structure; e.g. – manhole

Construction for access to a buried pipeline

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

Corrosion resistant leakproof plastic manhole system

Static structures (e.g. – buildings) – With entrance for persons or objects in horizontal or... – With additional enclosure structure; e.g. – manhole

Cover assembly for a ground opening

Static structures (e.g. – buildings) – With entrance for persons or objects in horizontal or... – With additional enclosure structure; e.g. – manhole

Cover for closing surface disposed utility access opening

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

Cover system for septic tank

Static structures (e.g. – buildings) – With entrance for persons or objects in horizontal or... – With additional enclosure structure; e.g. – manhole

Covering for a ground opening