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Class 439/7 - Having "nonsolid" contact, e.g., fibrous or pelletized bed


Subclass of Class 439 - Electrical connectors
Definition: Device wherein one of the conductors movably engaging the
No. of patents: 1
Last issue date: 12/20/1994


NumberTitleIssue Date
5375049Surgery lamp
In a surgery lamp with at least one arm which is divided by several uniaxial joints consisting of several parts, a lamp head being fastened to its one end, and its other end is held stationary, the arm has a spring counterbalance for counterbalancing the ... 		12/20/1994
 
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