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Patents for Frank Burgi
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,939,220Jun. 07, 1960F. Burgi, W.J. CroshierWire Holding Attachment for Three Wire Method of Measuring Threadsmeasurement gauges
GB-874,669Aug. 10, 1961W.J. Croshier, F. BurgiWire Holding Attachment for Three-Wire Method of Measuring Threads
CA-630,623Nov. 07, 1961W.J. Croshier, F. BurgiWire Holding Attachment for Three-Wire Method of Measuring Threads
3,026,622Mar. 27, 1962F. Burgi, W.J. CroshierDial Bord Gages Having an Extended Range
CA-646,461Aug. 07, 1962W.J. Croshier, F. BurgiDial Bore Gages Having an Extended Range
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