Number | Date | Country | Kind |
---|---|---|---|
3-103866 | Jan 1991 | JPX | |
3-147781 | May 1991 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2197916 | Balfe | Apr 1940 | |
3668036 | Farnam | Jun 1972 | |
3817540 | Nicholson | Jun 1974 | |
4290616 | Nicholson | Sep 1981 | |
4428593 | Pearlstein | Jan 1984 | |
4714260 | Udagawa | Dec 1987 | |
4721315 | Ueta | Jan 1988 | |
4728110 | Nakasone | Mar 1988 | |
4759585 | Udagawa | Jul 1988 | |
4810591 | Sakai | Mar 1989 | |
4836562 | Yoshino | Jun 1989 | |
4869519 | Udagawa et al. | Sep 1989 | |
4896891 | Udagawa | Jan 1990 | |
4898396 | Udagawa | Feb 1990 | |
4948153 | Takahashi et al. | Aug 1990 | |
5004250 | Udagawa | Apr 1991 |
Number | Date | Country |
---|---|---|
62-261761 | Nov 1987 | JPX |
63-293363 | Nov 1988 | JPX |
0083842 | Mar 1989 | JPX |
1-104953 | Apr 1989 | JPX |
1-285645 | Nov 1989 | JPX |
1549200 | Jul 1979 | GBX |
Entry |
---|
"Metal Handbook", 1948 Edition, ASM, pp. 841, 902, 925-926. |