(under subclass 50.5) Subject matter having structure especially provided for a plurality of lead-in conductors.
(1) Note. Included in this subclass are only devices where there is significance to the use of a plurality of lead-ins. If the lead-ins merely duplicate each other, then no cross-reference of the patent is placed in this subclass.
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50.52+, where the envelope is provided with an electrical connector.
50.55, where one of the lead-ins is a hollow conductor which surrounds another lead-in (e.g., co-axial).
50.57+, where a plurality of lead-in conductors pass through a closure disk or stem structure which is sealed into an opening in the envelope wall. 50.59, where there is shielding means to prevent leakage currents between two lead-in conductors.
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313, Electric Lamp and Discharge Devices,
317+, for electric lamps and discharge devices with a plurality of lead-in conductors.
