Invention Grant
- Patent Title: Process of changing wood.
- Patent Title (中): 改变木材的过程
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Application No.: US1906301698Application Date: 1906-02-17
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Publication No.: US839680APublication Date: 1906-12-25
- Inventor: VOIGT FRANK
- Applicant: VOIGT FRANK
- Assignee: Frank Voigt
- Current Assignee: Frank Voigt
- Priority: US1906301698 1906-02-17
Information query
