Number | Name | Date | Kind |
---|---|---|---|
1816159 | Smith | Jul 1931 | |
2905447 | Huet | Sep 1959 | |
3318375 | Linder | May 1967 | |
4693736 | Klusmier | Sep 1987 | |
4799359 | Nicoll | Jan 1989 |
Number | Date | Country |
---|---|---|
149251 | Feb 1936 | ATX |
Entry |
---|
Heat Transfer, Inc.; Sunstrand.RTM. Sales Pamphlet. |
Sphere Matrix.RTM. Sales Pamphlet; Vapor Corporation; Heat Exchange Products. |
Noranda Sales Pamphlet. |