...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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| Number | Title | Issue Date |
| 5183072 | Automatic switchover valve An automatic switchover valve includes first and second regulator valves arranged to oppose each other axially in a single housing, and ducted in a parallel configuration within the housing. Each regulator valve includes an inlet port, a diaphragm poppet ... | 02/02/1993 |
| 4625627 | Ventilated cabinet for containing gas supply vessels A gas cabinet for enclosing one or more compressed gas cylinders is ventilated for rapid removal of any gas leaked from the cylinders. The cabinet has a perforated plate as its floor which also serves as a fresh air inlet. Since the entire floor is used a... | 12/02/1986 |
| 4582217 | Sealable fluid containment assembly A hermetically sealable fluid containment assembly is provided. Fluids, such as compressed gases, are typically stored in a base container having a shoulder with a neck projecting outwardly from the shoulder. In accordance with the invention, a collar mem... | 04/15/1986 |