E04G 13/026
The forming surface-element being the same for different sections of the column
Official title: {the forming surface-element being the same for different sections of the column}
E04G13/026 (The forming surface-element being the same for different sections of the column) appears on 3 US grants and 3 published applications in this corpus.
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- 3
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- Latest grant
- 15 Mar 2005
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