Title:
Ladder rungs
Document Type and Number:
United States Patent 3232378


Inventors:
Larson, Clayton E.
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Publication Date:
02/01/1966
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Assignee:
WHITE METAL ROLLING & STAMPING
Primary Class:
182/194
Other Classes:
182/228.200, 182/228.600, 29/513
International Classes:
E06C7/08; E06C7/00
US Patent References:
0518767
0901755
1450961Process of mounting bells on toys or other articles
2113403Automobile frame
2857665Method for making metal spools
2871556Method of making mesh fabric
2957543Extension ladders
3002582Ladders and improved ladder elements
3016976Ladder construction
3142356Ladder construction
Foreign References:
BE561625A




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