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CH486309A Expired / Lapsed CH ⏱️ 0.0 years remaining

Method and device for the production of plastic pipes with an annular or helical grooved outer wall

Assignee: Hegler Wilhelm
•
Filing: 1968-02-19
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Granted: —
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Expires: 1988-02-19
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Abstract

No abstract record available.

Inventors

  • 👤 Hegler Wilhelm

Bibliographic Details

Application Number —
Jurisdiction CH
Data Source google_patents
Last Synchronized 2026-10-23 13:04
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/22; B; B29; B29C; B29C48/00; B29C48/001; B29C48/0013; B29C48/0015; B29C48/0016; B29C48/03; B29C48/09; B29C48/11; B29C48/13; B29C48/16; B29C48/18; B29C48/21; B29C48/25; B29C48/30; B29C48/303; B29C49/00; B29C49/0015; B29C49/0021; F16L11/04; F16L11/11; F16L11/118; B29C2791/00; B29C2791/004; B29C2791/006; B29C48/0017; B29C48/12; B29L; B29L2016/00; B29L2023/00; B29L2023/003; B29L2023/18; B29L2023/186; B29L2024/00; B29L2024/003; B29L2031/00; B29L2031/60; B29L2031/601

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