Patent CA684169A successfully refreshed from Google Patents.
CA684169A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Selective drilling and percussion assembly
Assignee: MARK MERIAM
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Filing: 1957-10-10
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Granted: 1964-04-14
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Expires: 1977-10-10
Abstract
No abstract record available.
Inventors
- 👤 J. Gapstur John
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-07 06:02
CPC Classifications
B; B25; B25D; B25D16/00; B25D2211/00; B25D2211/06; B25D2211/062; B25D2211/064; B25D2250/00; B25D2250/025
Claims Analysis
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References Cited (Backward Citations)
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