GB242548A
Expired / Lapsed
GB
⏱️ 0.0 years remaining
Renewable cutter rock drill steel
Assignee: Individual
•
Filing: 1925-06-04
•
Granted: —
•
Expires: 1945-06-04
Abstract
Abstract 242,548. Smith, E. J. June 4, 1925. Percussive drills. -Detachable cutters 6 are held in recesses 5 formed in the ends of wings 3 on the end of the shank. The cutters cover the wings, leaving a central passage, for clearing.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-11-05 01:04
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/36
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