Patent DE449935C successfully refreshed from Google Patents.
DE449935C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Spiral-shaped filler for absorption and reaction towers, stills, etc. like
Assignee: H W SCHAEFER FA
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Filing: —
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Granted: 1927-10-01
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Expires: 1944-10-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-26 23:09
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/30; B01J2219/00; B01J2219/30; B01J2219/302; B01J2219/30223; B01J2219/30257; B01J2219/30265; B01J2219/304; B01J2219/30408
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References Cited (Backward Citations)
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