| D363908 | Conformal stamp formed muffler | November, 1995 | Maag | D12/194 |
| 3374857 | Muffler construction | March, 1968 | Hutchins | 181/282 |
| 3457723 | EXHAUST SYSTEM | July, 1969 | Kerns | 60/302 |
| 4819428 | Exhaust system for an internal combustion engine | April, 1989 | Ciccarone | 181/228 |
| 4936412 | Silencer for the exhaust gas of motor vehicle internal combustion engines | June, 1990 | Sala | 181/282 |
| 5340952 | Exhaust muffler combining components made of different materials | August, 1994 | Takiguchi | 181/282 |
| 5726397 | Vehicle exhaust device | March, 1998 | Mukai et al. | 181/232 |
| 6135237 | Stamp-formed muffler | October, 2000 | Allman | 181/282 |
| 6158214 | Exhaust silencer arrangement | December, 2000 | Kempka et al. | 60/302 |
FIG. 1 is a top perspective view of a muffler for automobile, showing my new design;
FIG. 2 is a left side plan view of the muffler;
FIG. 3 is a right side plan view of the muffler;
FIG. 4 is a front elevation view of the muffler;
FIG. 5 is a back elevation view of the muffler;
FIG. 6 is a top plan view of the muffler; and,
FIG. 7 is a bottom plan view of the muffler.