United States Patent 1321097

View Patent Images:
Download PDF 1321097 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Primary Class:
217/45
Other Classes:
217/12A, 312/406, 62/298, 217/128, 312/108, 312/258, 312/265.500, 312/107
International Classes:
F25D3/04; F25D3/00