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Title:
MACHINE FOR RAPIDLY QUARRYING STONE
Document Type and Number:
Japanese Patent JPS5272304
Kind Code:
A
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Inventors:
OKAZAKI TOYOYUKI
Application Number:
JP14842375A
Publication Date:
June 16, 1977
Filing Date:
December 15, 1975
Export Citation:
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Assignee:
DAIKEN TRADE & INDUSTRY
International Classes:
E21C41/26; E21C47/10; (IPC1-7): E21C47/10
Domestic Patent References:
JPS4817170Y11973-05-16
JPS475909Y11972-02-29



 
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