FR47912E
Expired / Lapsed
FR
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Improvements to automatic mechanical pencils
Assignee: G A PENNELLIER ETS
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Filing: 1936-04-09
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Granted: 1937-08-23
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Expires: 1956-04-09
Abstract
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Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-24 20:16
CPC Classifications
B; B43; B43K; B43K21/00; B43K21/02; B43K21/16; B43K21/20
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