Invention Grant
- Patent Title: Master-block for making matrices.
- Patent Title (中): 主要制作矩阵。
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Application No.: US1905261038Application Date: 1905-05-18
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Publication No.: US854459APublication Date: 1907-05-21
- Inventor: BROWN FRANK H , HANRAHAN JOHN E , BOYDEN GEORGE A
- Applicant: NAT COMPOSITYPE COMPANY
- Assignee: Nat Compositype Company
- Current Assignee: Nat Compositype Company
- Priority: US1905261038 1905-05-18
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