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

Access hatch cover assembly with lift-assist assembly and...

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

Adjustable height manhole with locking means

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

Adjustable manhole cover

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

Adjustable manhole cover support structure

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

Adjustable manhole cover support structure

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

Adjustable manhole cover support with shield

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

Adjustable manhole frame assembly

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

Adjustable manhole/catch basin structure

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

Adjustable plumbing cleanout

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

Air-tight sump cover with water inlet

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

Aircraft servicing pit with retractable ladder

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

Airtight sump crock cover

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

Alignment plug structure

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

Annular slab for closing the vessel of a fast neutron nuclear re

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

Assembly of a safety rail for an access hatch

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

Attic access

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

Attic access apparatus

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

Attic access stairway cover

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

Attic cover