Number | Name | Date | Kind |
---|---|---|---|
RE25413 | Sogn | Jul 1963 | |
2111383 | Bokovoy | Mar 1938 | |
2282369 | Mason | May 1942 | |
2645727 | Willard | Jul 1953 | |
3376439 | Vasin et al. | Apr 1968 | |
3561832 | Karrer et al. | Feb 1971 | |
3617780 | Benjaminson et al. | Nov 1971 | |
3683213 | Staudte | Aug 1972 | |
3826931 | Hammond | Jul 1974 | |
4020448 | Corbett | Apr 1977 | |
4035674 | Oguchi et al. | Jul 1977 | |
4067241 | Corbett | Jan 1978 | |
4079280 | Kusters et al. | Mar 1978 | |
4160183 | Kusters et al. | Jul 1979 | |
4175243 | Corbett | Nov 1979 | |
4178566 | Kawashima | Dec 1979 | |
4245173 | Zumsteg et al. | Jan 1981 | |
4297610 | Ito et al. | Oct 1981 | |
4388548 | Vanghelowe | Jun 1983 | |
4418299 | Momosaki | Nov 1983 | |
4429248 | Chuang | Jan 1984 | |
4437773 | Dinger et al. | Mar 1984 | |
4439705 | Corbett | Mar 1984 | |
4454443 | Lukaszek et al. | Jun 1984 | |
4472656 | Franx | Sep 1984 | |
4485323 | Corbett | Nov 1984 | |
4498344 | Dinger | Feb 1985 | |
4507970 | Dinger | Apr 1985 | |
4512198 | Sinha et al. | Apr 1985 | |
4535638 | EerNisse et al. | Aug 1985 | |
4547691 | Valdois et al. | Oct 1985 | |
4550610 | EerNisse | Nov 1985 | |
4562375 | Besson et al. | Dec 1985 | |
4592663 | EerNisse et al. | Jun 1986 | |
4741213 | Hojoh | May 1988 | |
4802370 | EerNisse et al. | Feb 1989 | |
4866607 | Anderson et al. | Sep 1989 | |
4936147 | EerNisse et al. | Jun 1990 | |
5012151 | EerNisse et al. | Apr 1991 |
Number | Date | Country |
---|---|---|
0056783 | Jul 1982 | EPX |
Entry |
---|
Pp. 367 and 371-376 of Physical Acoustics Principles and Methods, vol. I, Part A, by Warren P. Mason (1964). |