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Patent:CN2047043u


Patent:CN 2047043u
Title:Calendar With Slide Rule For Calculating Physical, Morale, Intelligence Prosperity And Decline Law
Date:01.11.1989
Place:
Country:China
Person:Qiuqun Chen
Company:
Internal Links:Rechenschieber
Keywords:
Link to the patent office:
(without guarantee)
 CN2047043u