Document Type and Number:
United States Patent 0494868


View Patent Images:
Images are available in PDF form when logged in. To view PDFs, Login  or  Create Account (Free!)
Referenced by:
View patents that cite this patent
Export Citation:
Click for automatic bibliography generation
Primary Class:
182/189
Other Classes:
248/228.400
International Classes:
E06C1/38; E06C1/00




<- Previous Patent   |   Next Patent ->