TY  - JOUR
AN  - 029485451
AU  - Kaufman,H.E.
AU  - Mcdonald,M.B.
PY  - 1988
TI  - Trephine and method us patent 4763651. august 16 1988
JO  - Official Gazette of the United States Patent and Trademark Office Patents
VL  - 1093
IS  - 3
SP  - 1085
EP  - 1085
SN  - 0098-1133
UR  - https://eurekamag.com/research/029/485/029485451.php
ER  -