Patent Grant
D378111
| Number | Name | Date | Kind |
|---|---|---|---|
| 1269745 | Robertson | Jun 1918 | |
| 1526438 | Scott | Feb 1925 | |
| 1568888 | Dunn | Jan 1926 | |
| 1582836 | Link | Apr 1926 | |
| 1616920 | Pedersen | Feb 1927 | |
| 2003951 | Pepin | Jun 1935 | |
| 2067556 | Wettlaufer | Jan 1937 | |
| 2171383 | Wettlaufer | Aug 1939 | |
| 3819181 | Mills | Jun 1974 | |
| 3941390 | Hussey | Mar 1976 | |
| 3976299 | Lawrence et al. | Aug 1976 | |
| 4021047 | Mader | May 1977 | |
| 4214754 | Zebelean | Jul 1980 | |
| 4417731 | Yamada | Nov 1983 | |
| 4429879 | Schmidt | Feb 1984 | |
| 4944515 | Shearer | Jul 1990 | |
| 5058895 | Igarashi | Oct 1991 | |
| 5090702 | Viste | Feb 1992 | |
| 5232224 | Zeider | Aug 1993 |
| Number | Date | Country |
|---|---|---|
| 211781 | Dec 1957 | AUX |
| 371974 | May 1932 | GBX |
| 1476889 | Jun 1977 | GBX |
