CH457780A -
Set of ribs for the manufacture of ribbed ceilings
- Google Patents
Set of ribs for the manufacture of ribbed ceilings
Info
Publication number
CH457780A
CH457780ACH979666ACH979666ACH457780ACH 457780 ACH457780 ACH 457780ACH 979666 ACH979666 ACH 979666ACH 979666 ACH979666 ACH 979666ACH 457780 ACH457780 ACH 457780A
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Publication date
Application filed by Kirchner I AfiledCriticalKirchner I A
Publication of CH457780ApublicationCriticalpatent/CH457780A/en