Number | Name | Date | Kind |
---|---|---|---|
D278874 | Thorneburg et al. | May 1985 | |
2872145 | Goldscholl | Feb 1959 | |
4366906 | Joyce | Jan 1983 | |
4366908 | Anderson | Jan 1983 | |
4520978 | Taub | Jun 1985 |
Entry |
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Architectural Graphic Standards (1981), p. 516-Double Hook (second from left, top row). |