Title:
Extension ladder
Document Type and Number:
United States Patent 2880920

Inventors:
Glessner, Lee S.
Publication Date:
04/07/1959
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Assignee:
Glessner, Lee S.
Primary Class:
182/166
Other Classes:
254/99, 182/208, 182/176, 254/92
International Classes:
E06C1/22; E06C1/00
US Patent References:
0079079
1731611Telescoping ladder
1901726Scaffold
2376529Extension ladder
Foreign References:
GB186202246A
FR968627A




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