Patent 3343371 - 3343371
| United States Patent | Patent Number 3,343,371 |
| Issue Date: | Issued September 26, 1967 |
| Current U.S. Class: | 405/198 - 211/124 - 24/463 |
| Current International Class: | E02B017/06 (20060101) E02B017/00 (20060101) |
| Current CPC Class: | E02B 17/06 (20130101); E02B 17/0818 (20130101); E02B 2017/006 (20130101); E02B 2017/0082 (20130101) |
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