| All Patents in class 55/DIG.30 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 542,124 | Jul. 02, 1895 | J.A. Drake, A.J. Drake, J.E. Weyman | Gas or Other Like Motor | internal combustion engines |
| 583,600 | Jun. 01, 1897 | G. Langen | Means for Obviating Smell of Internal Combustion Engines | |
| 661,276 | Nov. 06, 1900 | G.L. Reenstierna | Muffler and Purifier for Gasolene-Engines | mufflers |
| 668,111 | Feb. 12, 1901 | W. Maybach | Explosion and Combustion Motor | internal combustion engines |
| 799,013 | Sep. 05, 1905 | E.R. Moffitt | Muffler | mufflers |
| 1,096,583 | May 12, 1914 | A. Winton | Muffling System for Explosion Engines | mufflers |
| 1,877,296 | Sep. 13, 1932 | M.J. Goldberg | Cleaning and Silencing Means for Engine Exhausts | exhaust mechanisms |
