Number | Date | Country | Kind |
---|---|---|---|
63-70347[U] | May 1988 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2730865 | Murdock | Jan 1956 | |
3264837 | Harnish | Aug 1966 | |
3350895 | Harnish | Nov 1967 | |
3386259 | Kirkpatrick | Jun 1968 | |
3922875 | Morris, Jr. | Dec 1975 |
Entry |
---|
Modern Refrigeration and Air Conditioning, Althouse et al, 1979, pp. 159-160. |