CH503591A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Device for noise suppression on typewriters and similar machines
Assignee: Ibm
•
Filing: 1970-05-28
•
Granted: —
•
Expires: 1990-05-28
Abstract
No abstract record available.
Inventors
- 👤 Louis Buehner William
- 👤 Leelan Greer Donald
- 👤 William Mccornack Richard
- 👤 Leonard O'brian Paul
- 👤 Wellington Simpson Henry
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-11-08 02:06
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/16; B; B41; B41J; B41J29/00; B41J29/08
Claims Analysis
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References Cited (Backward Citations)
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