DE338730C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Dust extraction device operated by ejectors for demolition hammer
Assignee: HEINRICH WENDSCHOFF
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Filing: —
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Granted: 1921-07-30
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Expires: 1938-07-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-29 00:32
CPC Classifications
E; E21; E21B; E21B21/00; E21B21/01; E21B21/015; B; B23; B23Q; B23Q11/00; B23Q11/0042; B23Q11/0046
Claims Analysis
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References Cited (Backward Citations)
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