Title:
ELEVATOR FOR EXTENSION LADDERS
Document Type and Number:
United States Patent 3428145

Inventors:
Lyon, Harry C.
Publication Date:
02/18/1969
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
Assignee:
Harry, Lyon C.
Primary Class:
182/103
International Classes:
E06C7/16; E06C7/00; E06C7/16
US Patent References:
0683890
2394148Hoist attachment for ladders
2438791Sliding ladder jack
3115211Ladder hoist


<- Previous Patent (ELASTIC WAVE ELEMENT...)   |   Next Patent (LADDER HAVING TELESC...) ->