Inventor: Harkness, John L.
Inventor: Shoesmith, deceased, Leonard H., Hesse, Peter S.
Inventor: Shoesmith, deceased, Leonard H., Hesse, Peter S.
Inventor: Jennings, Derek L.
Inventor: Rowe, deceased, Frank, Rowe, executor, by Philip M. B.
Inventor: Shoesmith, Leonard H., Hesse, Peter S.
Inventor: Keep, Elizabeth
Inventor: Tostevin, David
Inventor: Shoesmith, deceased, Leonard H., Hesse, Peter S.
Inventor: Shoesmith, deceased, Leonard H., Hesse, Peter S.