Patent CH81618A successfully refreshed from Google Patents.
CH81618A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Letterhead that can be closed without an envelope
Assignee: Hans Fleiner
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Filing: 1918-10-10
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Granted: —
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Expires: 1938-10-10
Abstract
No abstract record available.
Inventors
- 👤 Hans Fleiner
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-10-25 18:39
CPC Classifications
—
Claims Analysis
Total Claims: 0
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