Patent DE647987C successfully refreshed from Google Patents.
DE647987C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Clamping strips, which are parallel to a drawing board and can be slid along the length, for stretching drawing sheets
Assignee: Individual
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Filing: 1934-10-16
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Granted: 1937-07-19
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Expires: 1954-10-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-31 01:37
CPC Classifications
B; B43; B43L; B43L5/00; B43L5/02
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