Invention Grant
US813218A Process for rendering materials or articles resistant to water and chemicals.
失效
提炼材料的方法或耐水和化学品的制品。
- Patent Title: Process for rendering materials or articles resistant to water and chemicals.
- Patent Title (中): 提炼材料的方法或耐水和化学品的制品。
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Application No.: US1905277472Application Date: 1905-09-07
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Publication No.: US813218APublication Date: 1906-02-20
- Inventor: KOCHMANN CARL , KAUFMANN JULIUS
- Applicant: KOCHMANN CARL , KAUFMANN JULIUS
- Assignee: Carl Kochmann,Julius Kaufmann
- Current Assignee: Carl Kochmann,Julius Kaufmann
- Priority: US1905277472 1905-09-07
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