Construction set elements and joint
United States Patent 2765580
US Patent References:
Hold-down attachment
- - 2365372

Wire fastener
- - 2575481


Inventors:
William, Herrschaft
Publication Date:
10/09/1956
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Assignee:
William, Herrschaft
Primary Class:
446/119
Other Classes:
403/223, 403/201, 403/197, 403/167, 446/126, 403/173, 403/64, 403/DIG.013, 403/186, 403/217
International Classes:
A63H33/10; A63H33/04
Foreign References:
FR832726A