-
-
Curtain apparatus
-
Patent number 5,640,747
-
Issue date Jun 24, 1997
-
James N. Donnelly
-
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
-
Curtain apparatus
-
Patent number 5,461,763
-
Issue date Oct 31, 1995
-
James N. Donnelly
-
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
-
Curtain apparatus
-
Patent number 5,357,664
-
Issue date Oct 25, 1994
-
James N. Donnelly
-
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
-
-
Furnace curtains
-
Patent number 4,540,362
-
Issue date Sep 10, 1985
-
The BOC Group, Inc.
-
John R. Kurie
-
F27 - FURNACES KILNS OVENS RETORTS