Number | Date | Country | Kind |
---|---|---|---|
2-138006 | May 1990 | JPX | |
2-178423 | Jul 1990 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2197916 | Balfe | Apr 1940 | |
3668036 | Farnam | Jun 1972 | |
4290616 | Nicholson | Sep 1981 | |
4428593 | Pearlstein | Jan 1984 | |
4721315 | Ueta | Jan 1988 | |
4728110 | Nekasone | Mar 1988 | |
4759585 | Udagawa | Jul 1988 | |
4810591 | Sakai | Mar 1989 | |
4836562 | Yoshino | Jun 1989 | |
4861046 | Udagawa | Aug 1989 | |
4867462 | Udagawa | Sep 1989 | |
4898396 | Udagawa | Feb 1990 | |
4998741 | Udagawa | Mar 1991 |
Number | Date | Country |
---|---|---|
230804 | Aug 1987 | EPX |
61-103668 | Jul 1986 | JPX |
255250 | Nov 1986 | JPX |
62-261761 | Nov 1987 | JPX |
63-293363 | Nov 1988 | JPX |
35057 | Feb 1989 | JPX |
1-104953 | Apr 1989 | JPX |
1-285645 | Nov 1989 | JPX |
64778 | Feb 1992 | JPX |
Entry |
---|
"Metal Handbook", 1948 Edition, ASM, pp. 841, 902, 925-926. |