Showing 1 - 20 results of 35 for search '"Frei, R. J."', query time: 0.87s Refine Results  

Furnace

by JR. JOHN FREI
Year of Publication 10.10.1950
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Patent

Investing method

by JR. JOHN FREI
Year of Publication 20.09.1949
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Patent

Ash tray

by JR. JOHN FREI
Year of Publication 10.02.1942
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Patent

Sharpening device

by JR. JOHN FREI
Year of Publication 16.01.1940
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Patent

Post construction

by JR. JOHN FREI
Year of Publication 28.12.1937
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Patent

Flexible post

by JR. JOHN FREI
Year of Publication 19.12.1933
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Patent