Electric Christmas tree

作者: Esther Woolford

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摘要: An electrified, artificial Christmas tree, which comprises both the composed of a stand and trunk with attachable branches, various electrical components. The portion tree is plurality coupled sections are joined together in vertical orientation, each has holes for branches to be inserted. pieces also have sockets internally connected base trunk. attached it another socket master power cable. In use, assembled as any standard connecting together, inserting into them sizes. Any conventional ornament or lighting fixture may hung on these plugged requirements. A at provides stability, internal circuit breakers provide assurance against fire. line from powered entire tree.

参考文章(4)
Vaughn P. Huppert, Richard J. Castoro, Internally lighted decorative display ,(1980)
Michael Pietrantonio, Giuseppe De Frenza, Internal illuminated decorative displays ,(1987)