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Title:
METHOD OF PROPELLING CYLINDRICAL BODY WITH COMPLEX CUTTING EDGE AND ITS DEVICE
Document Type and Number:
Japanese Patent JPS5428409
Kind Code:
A
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Inventors:
UEMURA KOUICHI
Application Number:
JP9295577A
Publication Date:
March 03, 1979
Filing Date:
August 04, 1977
Export Citation:
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Assignee:
UEMURA KOICHI
International Classes:
E21D9/06; (IPC1-7): E02D29/10; E21D9/06
Domestic Patent References:
JPS51117409A1976-10-15
JPS4718466A
JPS4862232A1973-08-30
JPS4718468A



 
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