US Patent: 1,537,279
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| Universal joint
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Patentee:
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| Harry H. Wolfe (exact or similar names) - Toledo, OH |
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Patent Dates:
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| Applied: |
May 06, 1922 |
| Granted: |
May 12, 1925 |
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Jeff Joslin
Vintage Machinery entry for American Floor Surfacing Machine Co.
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Description: |
| "This invention relates to universal joints and particularly to a joint of this character adapted for use in floor surfacing machines between the rotary abrading block carrying head and its driving element." |
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