Title:
Ladder hoist
United States Patent 3115211
Inventors:
Ostrander Jr., John A.
Publication Date:
12/24/1963
Export Citation:
Click for automatic bibliography generation
Assignee:
Ostrander Jr., John A.
Primary Class:
182/103
Other Classes:
182/214, 187/241
International Classes:
E06C7/12; E06C7/00
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US Patent References:
3037579Ladder attachment
2943708Hoisting equipment
2934162Auxiliary ladder step
2855072Hoist
2806642Ladder offset apparatus
2720354Adjustable ladder for washing windows
2710129Ladder supporting attachment
2592006Prop attachment for ladders
2459621Hoisting attachment for ladders
2438791Sliding ladder jack
2396070Scaffold
2338833Fire rescue device
2249900Extension ladder and elevator
0976210N/A
0107225N/A
Foreign References:
GB161702A