Title:
METHOD OF BREAKING ROCK* STONE* CONCRETE* ETC* BY EXPANSION
Document Type and Number:
Japanese Patent JPS5433334
Kind Code:
A
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Inventors:
SHIMIZU NOBUYUKI
Application Number:
JP9846377A
Publication Date:
March 12, 1979
Filing Date:
August 17, 1977
Export Citation:
Assignee:
TAKENAKA KOMUTEN CO
International Classes:
E04G23/08; E02D5/34; E21C37/00; (IPC1-7): E04G23/08; E21C37/00
Domestic Patent References:
| JP53105031B |