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CH430177A Expired / Lapsed CH ⏱️ 0.0 years remaining

Process for perforating plastic films

Assignee: Siemens Ag
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Filing: 1965-02-09
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Granted: —
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Expires: 1985-02-09
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Abstract

No abstract record available.

Inventors

  • 👤 Froehlich Heinz Dr Dipl-Phys

Bibliographic Details

Application Number —
Jurisdiction CH
Data Source google_patents
Last Synchronized 2026-10-23 19:18
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/30; H01J37/302; B; B26; B26F; B26F1/00; B26F1/26; B26F1/28; B26F1/31; B29; B29D; B29D7/00; B29C; B29C71/00

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