| 申请人 |
BEARD TECHNOLOGIES, INC., OKLAHOMA CITY, OKLA., US |
发明人 |
DAVIS, BURL, E., NEW KENSINGTON, PA 15068, US;HENRY, RAYMOND, M., GIBSONIA, PA 15044, US;TRIVETT, GORDON, SAMUEL, NANOOSE BAY, BRITISH COLUMBIA VOR 2RO, CA;ALBAUGH, EDGAR, WILLIAM, BIRMINGHAM, AL 35210, US |
