- Patent JPS511206

Document Type and Number:

Japanese Patent JPS511206

Kind Code:

Y2

Application Number:

JP13818472U

Publication Date:

January 14, 1976

Filing Date:

November 30, 1972

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International Classes:

E02D3/12; E02D5/72; E02F3/06; E21B10/44; E21B27/00; E21B27/02; E21B33/13; (IPC1-7): E02F3/06; E02D3/12; E02D5/72; E21B33/13

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