申请人 |
MINE SAFETY APPLIANCES COMPANY;HAVERSTICK, JON, K.;BRUCE, DANIEL, E.;SCHULMAN, MICHAEL, B.;ZANELLA, MARK, F., SR.;CAHALL, JAMES, G.;MILLER, JAMES, B. |
发明人 |
HAVERSTICK, JON, K.;BRUCE, DANIEL, E.;SCHULMAN, MICHAEL, B.;ZANELLA, MARK, F., SR.;CAHALL, JAMES, G.;MILLER, JAMES, B. |