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FR977272A
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Improvements relating to writing instruments
Assignee: BIRO PATENTE AG
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Filing: 1948-11-05
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Granted: 1951-03-29
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Expires: 1968-11-05
Abstract
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Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-08 22:23
CPC Classifications
B; B43; B43K; B43K7/00; B43K7/02; B43K7/08; B43K7/03; B43K7/035
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