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| US Patent: 2,193,983 | |||||||||||||||||||||||||
| Means for and method of facilitating alignment or centering of piston rod, piston, and cylinder assemblies | |||||||||||||||||||||||||
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 Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Filer & Stowell Co. | ||||||||||||||||||||||||
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