"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 6314691 | Inspection opening frame An inspection opening frame includes frame components each of which is provided with a support portion extending along the inner surface of an inspection opening, a front wall holding portion projecting outward from the front surface of the support portio... | 11/13/2001 |
| 6158915 | Attachment member for board materials An attachment member 11 for board materials 2 such as heat insulating materials and the like comprises an affixing plate part 5 which is affixed to the substrate surface 3a of a body 3, a support plate part 6 which extends approximately perpendicularly wi... | 12/12/2000 |
| 5934034 | Foundation material for use with putty and manufacturing method therefor This foundation material 1 comprises a substrate 2 having a sheet form, and a surface modifying layer on at least front surface of said substrate comprising 2~30 parts by weight of a film formation aiding agent for every 100 parts by weight of a resin hav... | 08/10/1999 |
| 5418036 | Tile application backing material and tile application execution method A tile application backing material is disclosed having as an object thereof to greatly simplify tile allocation, positioning, and affixing and the like, and to strongly affix tiles and backing material to a laying surface; in order to achieve this object... | 05/23/1995 |
| 5074085 | Panel for use in double floors A panel is disclosed for use in double floors, a number of attachment holes are formed in the rear surface of the panel main body. The leg parts fit into these attachment holes in a state in which a step on the outer circumference of a leg part faces the ... | 12/24/1991 |