US Patent: 2,580,247
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Cam actuated wrench
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Patentees:
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Raymond Gaston Secondi (exact or similar names) - Paris, France |
Jean Vacheron (exact or similar names) - Maison-Alfort, France |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
May 19, 1950 |
Granted: |
Dec. 25, 1951 |
USPTO (New site tip) Google Patents
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Jeff Joslin
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Description: |
This stud extractor was especially intended for removing boiler staybolts. |
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