Invention Grant
- Patent Title: Paper-testing device.
- Patent Title (中): 纸张测试设备
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Application No.: US1912707945Application Date: 1912-07-05
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Publication No.: US1048488APublication Date: 1912-12-31
- Inventor: BLANCHARD FREDERICK C , CROCKER ERNEST B , EDDY HOWARD E
- Applicant: ASHCROFT MFG COMPANY
- Assignee: Ashcroft Mfg Company
- Current Assignee: Ashcroft Mfg Company
- Priority: US1912707945 1912-07-05
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