Title:
【発明の名称】冬至日における日影図作成定規
Document Type and Number:
Japanese Patent JPS5830840
Kind Code:
B2
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Inventors:
HATA GIICHI
Application Number:
JP3476579A
Publication Date:
July 01, 1983
Filing Date:
March 23, 1979
Export Citation:
Assignee:
HATA GIICHI
International Classes:
G06C3/00; B43L7/00; B43L7/10; (IPC1-7): B43L7/00; G06C3/00
Attorney, Agent or Firm:
Kenichiro Matsuo