Inventor: Moore, Ralph S.
Inventor: Davidson, Harvey D.
Inventor: Davidson, Harvey D.
Inventor: Olesen, Mogens N., Olesen, Pernille
Inventor: v. d. Hoorn, J. N. M.
Inventor: Christensen, Jack E.
Inventor: Winchel, Joseph
Inventor: Christensen, Jack E.
Inventor: Bennett, deceased, Cecilia L. D., O'Brien, special administrator, by Susan M.
Inventor: Olesen, Pernille, Olesen, Mogens N.
Inventor: Bennett, deceased, Cecilia L. D., O'Brien, administrator, by Susan M.