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Patent:DE642268
Patent:
DE 642268
Title:
Rechenschieber
Date:
27.02.1937
Place:
Frankfurt am Main
Country:
Germany
Person:
von Forster, Hermann
(
P
),
Grill, Leopold
(
P
)
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
DE642268
Aus der Patentschrift DE642268