CH48717A -
Process for the production of writings, sketches, drawings which are suitable for the production of reproductions and produced in weakly opaque lines
- Google Patents
Process for the production of writings, sketches, drawings which are suitable for the production of reproductions and produced in weakly opaque lines
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Publication number
CH48717A
CH48717ACH48717ACH48717DACH48717ACH 48717 ACH48717 ACH 48717ACH 48717 ACH48717 ACH 48717ACH 48717D ACH48717D ACH 48717DACH 48717 ACH48717 ACH 48717A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Max UllmannfiledCriticalMax Ullmann
Publication of CH48717ApublicationCriticalpatent/CH48717A/en
CH48717A1909-09-161909-09-16
Process for the production of writings, sketches, drawings which are suitable for the production of reproductions and produced in weakly opaque lines
CH48717A
(en)