Document Type and Number:
Japanese Patent JPS5357629
Kind Code:
U
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Application Number:
JP14168276U
Publication Date:
May 17, 1978
Filing Date:
October 19, 1976
Export Citation:
International Classes:
E01D19/10; E01C1/00; E01C3/00; (IPC1-7): E01C3/00; E01D9/00