FR480110A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to instruments used to mark the contour of drilled holes
Assignee: Individual
•
Filing: 1915-10-30
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Granted: 1916-06-22
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Expires: 1935-10-30
Abstract
No abstract record available.
Inventors
- 👤 Charles Broe Galvin
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-28 12:44
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/002
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References Cited (Backward Citations)
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