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Patent CA886975A successfully refreshed from Google Patents.
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CA886975A Expired / Lapsed CA ⏱️ 0.0 years remaining

Hydraulic parallel motion means for drill boom supported rock drilling apparatus

Assignee: Atlas Copco AB
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Filing: —
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Granted: 1971-11-30
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Expires: 1988-11-30
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Abstract

No abstract record available.

Inventors

  • 👤 V. Kimber Erich
  • 👤 C. Ronne Per-Axel

Bibliographic Details

Application Number —
Jurisdiction CA
Data Source google_patents
Last Synchronized 2026-11-06 10:56
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/02; E21B7/025; E21B7/022

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