Inventor: Cooper, Calvin L.
Inventor: Bailey, Catherine H., Hough, L. Fredric
Inventor: James, Leonard D.
Inventor: Van den Berg, Cornelis P., Mikkelsen, James C.
Inventor: Van den Berg, Cornelis P., Mikkelsen, James C.
Inventor: Millikan, Gertrude P.
Inventor: Stark, Jr., Paul C.
Inventor: Bennett, Cecilia L. D.
Inventor: Williams, Ernest D.
Inventor: Van den Berg, Cornelis P., Mikkelsen, James C.
Inventor: Van den Berg, Cornelis P., Mikkelsen, James C.
Inventor: Mikkelsen, James C., Van den Berg, Cornelis P.
Inventor: Van den Berg, Cornelis P., Mikkelsen, James C.
Inventor: Shay, deceased, J. Ralph, Williams, Edwin B.
Inventor: Swim, Herbert C., Ellis, Arnold W.
Inventor: Meek, Jack M., Duffett, William E.
Inventor: Moore, Ralph S.
Inventor: Meek, Jack M., Duffett, William E.