| Leonardo's Iron Ornamental (Los Angeles, CA)
|
| Lexicon Co (Sebastopol, CA)
|
| Liberty Ironworks (Mount Vernon, IA)
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| Liberty Welding Shop & Irn Wrk (Los Angeles, CA)
|
| Light Fire Iron Works (Sun Valley, CA)
|
| Little Chute Windmill Inc (Little Chute, WI)
|
| Lopez Iron Work (El Monte, CA)
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| Lopez Iron Works (Pacoima, CA)
|
| Los Alamitos Ornamental Iron (Gardena, CA)
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| Los Amigos Ornamental Iron (Phoenix, AZ)
|
| Lph Bolander & Sons (San Francisco, CA)
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| L-T-D Inc (Somerville, MA)
|
| M & M Welding (Hawthorne, CA)
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| M E Ironworks (Cookeville, TN)
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| Mailliard Aluminum & Self Strg (Conneaut Lake, PA)
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| Malone Well Svc (Weatherford, TX)
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| Mandell Iron Works (Buffalo, NY)
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| Manuel's Fence (Mentone, CA)
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| Maple Welding & Iron Works Inc (South El Monte, CA)
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| Marquez Iron Security (Albuquerque, NM)
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| Marsh Bros Ornamental Iron (Corinth, MS)
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| Martinez Iron Work (Santa Ana, CA)
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| Mary's Iron Studio (Shoshone, ID)
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| Master Iron Works (San Francisco, CA)
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| Mauldin Drilling (Williamsburg, NM)
|
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