Number | Date | Country | Kind |
---|---|---|---|
PC4944 | Feb 1976 | AU | |
PC7581 | Oct 1976 | AU |
Number | Name | Date | Kind |
---|---|---|---|
305584 | Forrest | Sep 1884 | |
1062994 | Pruden | May 1913 | |
1162432 | Aagaard | Nov 1915 | |
1428484 | Lankheet | Sep 1922 | |
1924414 | Ring | Aug 1933 | |
2270161 | Briggs | Jan 1942 | |
3289362 | Whelan | Dec 1966 | |
3830024 | Warnke | Aug 1974 | |
3969862 | Kuss | Jul 1976 |
Number | Date | Country |
---|---|---|
929,591 | Dec 1947 | FR |
856,009 | May 1940 | FR |
766,543 | Jun 1934 | FR |
Entry |
---|
Progressive Architecture, Feb. 1963, p. 79, "New Products". |