Document Type and Number:
United States Patent 1126977


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:
232/1R
Other Classes:
312/211, 193/8
International Classes:
B42F17/08; B42F17/00