| Patents for Emma M. Graham |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 681,391 | Aug. 27, 1901 | J.B. Fenner | Muffler for Gas or Other Engines | mufflers |
| 705,596 | Jul. 29, 1902 | J.G. Morith | Pipe Wrench | pipe wrenches |
| 706,916 | Aug. 12, 1902 | J.B. Fenner | Fuel Valve for Gas Engines | internal combustion engine valves |
| 747,017 | Dec. 15, 1903 | C.A. Svensson | Drill-chuck | drill press chucks |
| 757,064 | Apr. 12, 1904 | H.J. Smith | Electric Igniter for Gas Engines | ignition systems |
| 801,927 | Oct. 17, 1905 | H.J. Smith | Fuel Mixing Device for Gas Engines | carburetors |
| 832,265 | Oct. 02, 1906 | C.W. Manzel | Lubricating Device | tool lubricators |
| 897,857 | Sep. 01, 1908 | B.R. Spaulding | Bit Brace Wrench | brace wrenches |
| 920,769 | May 04, 1909 | C.W. Manzel | Lubricator | tool lubricators |
| 931,327 | Aug. 17, 1909 | C.W. Manzel | Drill Chuck | drill press chucks |
| 1,069,450 | Aug. 05, 1913 | C.W. Manzel | Force Feed Lubricator | tool lubricators |
| 1,213,522 | Jan. 23, 1917 | C.W. Manzel | Air Pump | air pumps |
