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

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

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

Device for closing a frame having a panel articulated on the...

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

Device for equalizing changes in level between a ground area...

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

Device for housing the active and passive junction assemblies of

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

Drain and inspection manhole for liquid conduits and manhole sec

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

Drain hole seal with bottom bleeder

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

Floor hatch

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

Floor hatch with integrated security fence

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

Frame mount latch assembly for subsurface aircraft servicing...

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

Fuel tank sump containment apparatus

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

Gate valve box sealing

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

Handle for subterranean concrete covers

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

Hatch safety railing system

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

In-floor access pit frame and cover system

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

Industrial vault

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

Insulated ceiling hatch

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

Lined structure and liner

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

Liner for manhole and a method for lining a manhole

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

Liquid infiltration prevention structures for preventing liquid