DE2614953
HEFFERNAN, JAMES THOMAS, FRIENDWOOD, LEE, WILLIAM SHACKELFORD, FRIENDWOOD, KINZLER, JACK ALBERT, SEABROOK, FEHRENKAMP, LEROY GEORGE, HOUSTON
Year of Publication 14.02.1980
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Year of Publication 14.02.1980
Patent
DE2614953
HEFFERNAN, JAMES THOMAS, FRIENDWOOD, LEE, WILLIAM SHACKELFORD, FRIENDWOOD, KINZLER, JACK ALBERT, SEABROOK, FEHRENKAMP, LEROY GEORGE, HOUSTON
Year of Publication 13.06.1979
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Year of Publication 13.06.1979
Patent