US Patent: 3,745,203
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| Process for Molding Polyurethane Utilizing a Mixture of Two Blowing Agents
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Patentee:
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| Robert C. Harper (exact or similar names) - Loveland, Hamilton County, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 03, 1969 |
| Granted: |
Jul. 10, 1973 |
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Joel Havens "Vintage Machinery" entry for Cincinnati Milling Machine Co.
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Description: |
| Continuation of abandoned application filed 03 Dec., 1969. This application filed 19 Aug., 1971. |
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