| Crab - West Union | Gade - Iowa Falls
|
| Chase engines - Mason City by Chase Manufacturing Co. from 1913-1916
(Chase images here) |
| Adams - Dubuque | Armstrong - Waterloo
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| Associated - Waterloo | Aurora - Aurora
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| Caldwell-Hollowell - Waterloo | Cascaden - Waterloo
|
| Cedar Rapids Foundry Co. - Cedar Rapids |
Chamberlain Machine Works - Waterloo |
| Collis Co. - Clinton | Corn Belt Motors Co. - Waterloo
|
| H.J. Criner Co. - Burlington | Davenport Mfg Co. - Davenport
|
| Davis - Waterloo | Des Moines Gas Eng. & Electric Co. - D.M.
|
| Diamond Engine Co. - Des Moines | E. Davenport Mch & Novelty Wks-Davenport
|
| Fairfield Engine Co. - Fairfield | Ft. Madison Gas Eng Co. - Ft. Madison
|
| Galloway - Waterloo | Hart-Parr Co. - Charles City
|
| John T. Hume Co. - Des Moines | Ideal Gas Engine Co. - Independence
|
| Iowa Marine Eng & Launch Works - Bellevue
| Iowa Dairy Separator Co. - Waterloo |
| O.S. Kelly Western - Iowa City | Keyston Iron Works - Ft. Madison
|
| Koilmylar-Talbet - Keokuk | Lamb Boat & Engine Co - Clinton
|
| Lennox - Marshalltown | Maytag - Newton
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| Sandy McManus Inc. - Waterloo | George B Miller Co - Waterloo
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| Murray Iron Works - Burlington | Monarch Machine Co - Des Moines
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| Nelson Gas Engine Co - Harlan | New Hampton Mfg Co - New Hampton
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| One Minute Mfg Co - Newton | T.G. Pelter & Sons - Lyons
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| Valden W. Potter - Oelwein | Scheppele Machine Works - Dubuque
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| W.F. Porter - Essex | Sebelin Machine & Tool - Davenport
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| S.P.C. Gas Engine Co - Des Moines | Sheldon - Waterloo
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| Schmidt Bros. - Davenport | Walker Mfg Co - Council Bluffs
|
| Sherman & Smith Mfg Co - Independence |
Jacob C. Werdel - Atkin |
| John F. Stroben - Davenport | Wilson Machine Co - Des Moines
|
| Waterloo Gasoline Engine Co - Waterloo |
White Lily Washer Co - Davenport |
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