BUFFINGTON, J.
This case concerns top tipless electric light bulbs, the air in which is exhausted through the base or neck of the bulb, while in top-tipped bulbs it is exhausted through a tube at the top, which tube, when fused, leaves a tip on the bulb head. In 1903 one Jaeger, in patent No. 729,182, showed in the accompanying cut a tipless bulb. As stated in his specification: "This is accomplished by providing an exhaust tube, which is seated or joined to the inside...
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