Northup; Ruth B.

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Patents Grantslast 30 patents

Information Patent Grant
Method of forming glass bottles
- Patent number 4,276,073
- Issue date Jun 30, 1981
- Northup; Ruth B.
- John D. Northup
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Apparatus for manufacturing glass bottles
- Patent number 4,244,726
- Issue date Jan 13, 1981
- Northup; Jr.; J. D.
- John D. Northup
- C03 - GLASS MINERAL OR SLAG WOOL